新建数据库ssm

建立数据库表user

  1. CREATE TABLE `user` (
  2. 　　`id` int(11) NOT NULL AUTO_INCREMENT ,
  3. 　　`sex` varchar(255) NULL ,
  4. 　　`name` varchar(255) NULL ,
  5. 　　PRIMARY KEY (`id`)
  6. );

新建一个Java web工程 SSM,目录结构如下

下面挨个看下配置文件

conf.properties配置详情

  1. url=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf-8&autoReconnect=true
  2. driver=com.mysql.jdbc.Driver
  3. username=root
  4. password=root

log4j.properties配置详情

  1. log4j.rootLogger=info, live, file
  2. log4j.logger.org.springframework=ERROR
  3. —log4j.logger.org.logicalcobwebs.proxool=ERROR
  4. log4j.appender.live=org.apache.log4j.ConsoleAppender
  5. log4j.appender.live.Target=System.out
  6. log4j.appender.live.layout=org.apache.log4j.PatternLayout
  7. log4j.appender.live.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss}(%r)%n--> [%t] %l: %m %x %n
  8. log4j.appender.file.File=/log/liveApi.log
  9. log4j.appender.file.layout=org.apache.log4j.PatternLayout
  10. log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
  11. log4j.appender.file.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss}(%r)%n--> [%t] %l: %m %x %n
  12. log4j.appender.file.DatePattern='.'yyyy-MM-dd'.log'
  13. log4j.logger.com.ssm.dao=DEBUG

web.xml配置详情

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3. 	xmlns="http://java.sun.com/xml/ns/javaee"
  4. 	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
  5. 	id="WebApp_ID" version="3.0">
  6. 	<display-name>SSM</display-name>
  7. 	<welcome-file-list>
  8. 		<welcome-file>index.html</welcome-file>
  9. 		<welcome-file>index.htm</welcome-file>
  10. 		<welcome-file>index.jsp</welcome-file>
  11. 		<welcome-file>default.html</welcome-file>
  12. 		<welcome-file>default.htm</welcome-file>
  13. 		<welcome-file>default.jsp</welcome-file>
  14. 	</welcome-file-list>
  15. 	<!-- 配置 Spring -->
  16. 	<context-param>
  17. 		<param-name>contextConfigLocation</param-name>
  18. 		<param-value>/WEB-INF/applicationContext.xml</param-value>
  19. 	</context-param>
  20. 	<!-- 配置DispatchcerServlet -->
  21. 	<servlet>
  22. 		<servlet-name>springDispatcherServlet</servlet-name>
  23. 		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  24. 		<!-- 配置Spring mvc下的配置文件的位置和名称 -->
  25. 		<init-param>
  26. 			<param-name>contextConfigLocation</param-name>
  27. 			<param-value>/WEB-INF/springmvc.xml</param-value>
  28. 		</init-param>
  29.  
  30. 		<load-on-startup>1</load-on-startup>
  31. 	</servlet>
  32. 	<servlet-mapping>
  33. 		<servlet-name>springDispatcherServlet</servlet-name>
  34. 		<url-pattern>/</url-pattern>
  35. 	</servlet-mapping>
  36. 	<!-- spring Web MVC框架提供了org.springframework.web.filter.CharacterEncodingFilter用于解决POST方式造成的中文乱码问题 -->
  37. 	<filter>
  38. 		<filter-name>encodingFilter</filter-name>
  39. 		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  40. 		<init-param>
  41. 			<param-name>encoding</param-name>
  42. 			<param-value>UTF-8</param-value>
  43. 		</init-param>
  44. 		<!-- force强制，促使 -->
  45. 		<init-param>
  46. 			<param-name>forceEncoding</param-name>
  47. 			<param-value>true</param-value>
  48. 		</init-param>
  49. 	</filter>
  50. 	<filter-mapping>
  51. 		<filter-name>encodingFilter</filter-name>
  52. 		<url-pattern>/</url-pattern>
  53. 	</filter-mapping>
  54. 	<!-- Spring监听器 -->
  55. 	<listener>
  56. 		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  57. 	</listener>
  58. 	<!-- 防止Spring内存溢出监听器 -->
  59. 	<listener>
  60. 		<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
  61. 	</listener>
  62. 	<!-- 异常页面捕获 -->
  63. 	<error-page>
  64. 		<exception-type>java.lang.Throwable</exception-type>
  65. 		<location>/500.html</location>
  66. 	</error-page>
  67. 	<error-page>
  68. 		<error-code>500</error-code>
  69. 		<location>/500.html</location>
  70. 	</error-page>
  71. 	<error-page>
  72. 		<error-code>404</error-code>
  73. 		<location>/404.html</location>
  74. 	</error-page>
  75. </web-app>

applicationContext.xml配置详情

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3. 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
  4. 	xmlns:context="http://www.springframework.org/schema/context"
  5. 	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
  6. 	xsi:schemaLocation="http://www.springframework.org/schema/beans
  7.             http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
  8.             http://www.springframework.org/schema/mvc
  9.             http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
  10.             http://www.springframework.org/schema/context
  11.             http://www.springframework.org/schema/context/spring-context-3.0.xsd
  12.             http://www.springframework.org/schema/aop
  13.             http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
  14.             http://www.springframework.org/schema/tx
  15.             http://www.springframework.org/schema/tx/spring-tx-3.0.xsd ">
  16.  
  17. 	<!-- 配置自动扫描的包 -->
  18. 	<context:component-scan base-package="com.ssm">
  19. 		<!-- 制定扫包规则 ,扫描除去使用@Controller注解的JAVA类 -->
  20. 		<context:exclude-filter type="annotation"
  21. 			expression="org.springframework.stereotype.Controller" />
  22. 	</context:component-scan>
  23.  
  24. 	<!-- ===========================数据源配置=============================== -->
  25. 	<!-- 引入外部数据源配置信息 -->
  26. 	<bean
  27. 		class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
  28. 		<property name="locations">
  29. 			<value>classpath:conf.properties</value>
  30. 		</property>
  31. 	</bean>
  32.  
  33. 	<!-- 配置数据源 -->
  34. 	<bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
  35. 		init-method="init" destroy-method="close">
  36. 		<property name="driverClassName" value="${driver}" />
  37. 		<property name="url" value="${url}" />
  38. 		<property name="username" value="${username}" />
  39. 		<property name="password" value="${password}" />
  40. 		<!-- 初始化连接大小 -->
  41. 		<property name="initialSize" value="0" />
  42. 		<!-- 连接池最大使用连接数量 -->
  43. 		<property name="maxActive" value="20" />
  44. 		<!-- 连接池最小空闲 -->
  45. 		<property name="minIdle" value="0" />
  46. 		<!-- 获取连接最大等待时间 -->
  47. 		<property name="maxWait" value="60000" />
  48.  
  49. 		<property name="validationQuery">
  50. 			<value>SELECT 1</value>
  51. 		</property>
  52. 		<property name="testOnBorrow" value="false" />
  53. 		<property name="testOnReturn" value="false" />
  54. 		<property name="testWhileIdle" value="true" />
  55.  
  56. 		<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
  57. 		<property name="timeBetweenEvictionRunsMillis" value="60000" />
  58. 		<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
  59. 		<property name="minEvictableIdleTimeMillis" value="25200000" />
  60.  
  61. 		<!-- 打开removeAbandoned功能 -->
  62. 		<property name="removeAbandoned" value="true" />
  63. 		<!-- 1800秒，也就是30分钟 -->
  64. 		<property name="removeAbandonedTimeout" value="1800" />
  65. 		<!-- 关闭abanded连接时输出错误日志 -->
  66. 		<property name="logAbandoned" value="true" />
  67.  
  68. 		<!-- 监控数据库 -->
  69. 		<!-- <property name="filters" value="stat" /> -->
  70. 		<property name="filters" value="mergeStat" />
  71. 	</bean>
  72. 	<!-- 配置MyBatis session工厂 -->
  73. 	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
  74. 		<property name="dataSource" ref="dataSource" />
  75. 		<!-- 自动扫描mapping.xml文件 -->
  76. 		<property name="mapperLocations" value="classpath:com/ssm/mapper/*.xml"></property>
  77. 	</bean>
  78.  
  79. 	<!-- DAO接口所在包名，Spring会自动查找其下的类 -->
  80. 	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
  81. 		<property name="basePackage" value="com.ssm.dao" />
  82. 		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
  83. 	</bean>
  84.  
  85. 	<!-- (事务管理)transaction manager -->
  86. 	<bean id="transactionManager"
  87. 		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
  88. 		<property name="dataSource" ref="dataSource" />
  89. 	</bean>
  90.  
  91. 	<!-- 注解方式配置事物 -->
  92. 	<tx:annotation-driven transaction-manager="transactionManager" />
  93.  
  94. </beans>

springmvc.xml配置详情

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3. 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
  4. 	xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx"
  5. 	xmlns:task="http://www.springframework.org/schema/task"
  6. 	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
  7.         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
  8.         http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
  9.             http://www.springframework.org/schema/tx
  10.         http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
  11.          http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd
  12.      ">
  13. 	<!-- ====================================================== -->
  14. 	<!-- 配置@ResponseBody 保证返回值为UTF-8 -->
  15. 	<!-- 因为StringHttpMessageConverter默认是ISO8859-1 -->
  16. 	<!-- 用于使用@ResponseBody后返回中文避免乱码 -->
  17. 	<bean id="utf8Charset" class="java.nio.charset.Charset"
  18. 		factory-method="forName">
  19. 		<constructor-arg value="UTF-8" />
  20. 	</bean>
  21.  
  22. 	<!-- 配置自动扫描的包 -->
  23. 	<context:component-scan base-package="com.ssm">
  24. 		<!-- 制定扫包规则 ,只扫描使用@Controller注解的JAVA类 -->
  25. 		<context:include-filter type="annotation"
  26. 			expression="org.springframework.stereotype.Controller" />
  27. 	</context:component-scan>
  28.  
  29. 	<!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->
  30. 	<mvc:annotation-driven>
  31. 		<mvc:message-converters register-defaults="true">
  32. 			<!-- 配置Fastjson支持 -->
  33. 			<bean
  34. 				class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
  35. 				<property name="charset" value="UTF-8" />
  36. 				<property name="supportedMediaTypes">
  37. 					<list>
  38. 						<value>text/html;charset=UTF-8</value>
  39. 						<value>application/json</value>
  40. 						<value>application/xml;charset=UTF-8</value>
  41. 					</list>
  42. 				</property>
  43. 				<property name="features">
  44. 					<list>
  45. 						<!-- 输出key时是否使用双引号 -->
  46. 						<value>QuoteFieldNames</value>
  47. 						<!-- 是否输出值为null的字段 -->
  48. 						<!-- <value>WriteMapNullValue</value> -->
  49. 						<!-- 数值字段如果为null,输出为0,而非null -->
  50. 						<value>WriteNullNumberAsZero</value>
  51. 						<!-- List字段如果为null,输出为[],而非null -->
  52. 						<value>WriteNullListAsEmpty</value>
  53. 						<!-- 字符类型字段如果为null,输出为"",而非null -->
  54. 						<value>WriteNullStringAsEmpty</value>
  55. 						<!-- Boolean字段如果为null,输出为false,而非null -->
  56. 						<value>WriteNullBooleanAsFalse</value>
  57. 						<!-- null String不输出 -->
  58. 						<value>WriteNullStringAsEmpty</value>
  59. 						<!-- null String也要输出 -->
  60. 						<!-- <value>WriteMapNullValue</value> -->
  61.  
  62. 						<!-- Date的日期转换器 -->
  63. 						<value>WriteDateUseDateFormat</value>
  64. 					</list>
  65. 				</property>
  66. 			</bean>
  67. 		</mvc:message-converters>
  68. 	</mvc:annotation-driven>
  69.  
  70. 	<!-- 文件上传配置 -->
  71. 	<bean id="multipartResolver"
  72. 		class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
  73. 		<property name="defaultEncoding">
  74. 			<value>UTF-8</value>
  75. 		</property>
  76. 		<property name="maxUploadSize">
  77. 			<!-- 100M 1024 * 1024 * 100 -->
  78. 			<value>104857600</value>
  79. 		</property>
  80. 		<property name="maxInMemorySize">
  81. 			<value>4096</value>
  82. 		</property>
  83. 	</bean>
  84. </beans>

==============顺便介绍一下数据库逆向生成工具（网上应该也有现成的）================================start

新建一个java 工程generatorSqlmapCustom，如下图所示

generatorConfig.xml配置详情

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <!DOCTYPE generatorConfiguration
  3.   PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
  4.   "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
  5.  
  6. <generatorConfiguration>
  7. 	<context id="testTables" targetRuntime="MyBatis3">
  8. 		<commentGenerator>
  9. 			<!-- 是否去除自动生成的注释 true：是 ： false:否 -->
  10. 			<property name="suppressAllComments" value="true" />
  11. 		</commentGenerator>
  12. 		<!--数据库连接的信息：驱动类、连接地址、用户名、密码 -->
  13. 		<jdbcConnection driverClass="com.mysql.jdbc.Driver"
  14. 			connectionURL="jdbc:mysql://localhost:3306/ssm" userId="root"
  15. 			password="root">
  16. 		</jdbcConnection>
  17. 		<!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和
  18. 			NUMERIC 类型解析为java.math.BigDecimal -->
  19. 		<javaTypeResolver>
  20. 			<property name="forceBigDecimals" value="false" />
  21. 		</javaTypeResolver>
  22.  
  23. 		<!-- targetProject:生成PO类的位置 -->
  24. 		<javaModelGenerator targetPackage="com.ssm.pojo"
  25. 			targetProject=".\src">
  26. 			<!-- enableSubPackages:是否让schema作为包的后缀 -->
  27. 			<property name="enableSubPackages" value="false" />
  28. 			<!-- 从数据库返回的值被清理前后的空格 -->
  29. 			<property name="trimStrings" value="true" />
  30. 		</javaModelGenerator>
  31.         <!-- targetProject:mapper映射文件生成的位置 -->
  32. 		<sqlMapGenerator targetPackage="com.ssm.dao"
  33. 			targetProject=".\src">
  34. 			<!-- enableSubPackages:是否让schema作为包的后缀 -->
  35. 			<property name="enableSubPackages" value="false" />
  36. 		</sqlMapGenerator>
  37. 		<!-- targetPackage：mapper接口生成的位置 -->
  38. 		<javaClientGenerator type="XMLMAPPER"
  39. 			targetPackage="com.ssm.dao"
  40. 			targetProject=".\src">
  41. 			<!-- enableSubPackages:是否让schema作为包的后缀 -->
  42. 			<property name="enableSubPackages" value="false" />
  43. 		</javaClientGenerator>
  44. 		<!-- 指定数据库表 -->
  45. 		<table schema="" tableName="user"></table>
  46. 	</context>
  47. </generatorConfiguration>

GeneratorSqlmap.java代码

  1. public void generator() throws Exception{
  2.  
  3. 		List<String> warnings = new ArrayList<String>();
  4. 		boolean overwrite = true;
  5. 		//指定 逆向工程配置文件
  6. 		File configFile = new File("generatorConfig.xml");
  7. 		ConfigurationParser cp = new ConfigurationParser(warnings);
  8. 		Configuration config = cp.parseConfiguration(configFile);
  9. 		DefaultShellCallback callback = new DefaultShellCallback(overwrite);
  10. 		MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config,
  11. 				callback, warnings);
  12. 		myBatisGenerator.generate(null);
  13.  
  14. 	}
  15. 	public static void main(String[] args) throws Exception {
  16. 		try {
  17. 			GeneratorSqlmap generatorSqlmap = new GeneratorSqlmap();
  18. 			generatorSqlmap.generator();
  19. 		} catch (Exception e) {
  20. 			e.printStackTrace();
  21. 		}
  22.  
  23. 	}

执行main函数 生成对应的映射文件，然后刷新项目

==============顺便介绍一下数据库逆向生成工具================================end

将逆向生成的文件拷贝到对应的文件夹

如果不想使用逆向工程，手动配置一下也可以

User.java

  1. package com.ssm.pojo;
  2.  
  3. public class User {
  4.     private Integer id;
  5.  
  6.     private String sex;
  7.  
  8.     private String name;
  9.  
  10.     public Integer getId() {
  11.         return id;
  12.     }
  13.  
  14.     public void setId(Integer id) {
  15.         this.id = id;
  16.     }
  17.  
  18.     public String getSex() {
  19.         return sex;
  20.     }
  21.  
  22.     public void setSex(String sex) {
  23.         this.sex = sex == null ? null : sex.trim();
  24.     }
  25.  
  26.     public String getName() {
  27.         return name;
  28.     }
  29.  
  30.     public void setName(String name) {
  31.         this.name = name == null ? null : name.trim();
  32.     }
  33. }

UserExample.java其实这个类可以没有，这个类主要就是方便配置sql查询条件

  1. package com.ssm.pojo;
  2.  
  3. import java.util.ArrayList;
  4. import java.util.List;
  5.  
  6. public class UserExample {
  7.     protected String orderByClause;
  8.  
  9.     protected boolean distinct;
  10.  
  11.     protected List<Criteria> oredCriteria;
  12.  
  13.     public UserExample() {
  14.         oredCriteria = new ArrayList<Criteria>();
  15.     }
  16.  
  17.     public void setOrderByClause(String orderByClause) {
  18.         this.orderByClause = orderByClause;
  19.     }
  20.  
  21.     public String getOrderByClause() {
  22.         return orderByClause;
  23.     }
  24.  
  25.     public void setDistinct(boolean distinct) {
  26.         this.distinct = distinct;
  27.     }
  28.  
  29.     public boolean isDistinct() {
  30.         return distinct;
  31.     }
  32.  
  33.     public List<Criteria> getOredCriteria() {
  34.         return oredCriteria;
  35.     }
  36.  
  37.     public void or(Criteria criteria) {
  38.         oredCriteria.add(criteria);
  39.     }
  40.  
  41.     public Criteria or() {
  42.         Criteria criteria = createCriteriaInternal();
  43.         oredCriteria.add(criteria);
  44.         return criteria;
  45.     }
  46.  
  47.     public Criteria createCriteria() {
  48.         Criteria criteria = createCriteriaInternal();
  49.         if (oredCriteria.size() == 0) {
  50.             oredCriteria.add(criteria);
  51.         }
  52.         return criteria;
  53.     }
  54.  
  55.     protected Criteria createCriteriaInternal() {
  56.         Criteria criteria = new Criteria();
  57.         return criteria;
  58.     }
  59.  
  60.     public void clear() {
  61.         oredCriteria.clear();
  62.         orderByClause = null;
  63.         distinct = false;
  64.     }
  65.  
  66.     protected abstract static class GeneratedCriteria {
  67.         protected List<Criterion> criteria;
  68.  
  69.         protected GeneratedCriteria() {
  70.             super();
  71.             criteria = new ArrayList<Criterion>();
  72.         }
  73.  
  74.         public boolean isValid() {
  75.             return criteria.size() > 0;
  76.         }
  77.  
  78.         public List<Criterion> getAllCriteria() {
  79.             return criteria;
  80.         }
  81.  
  82.         public List<Criterion> getCriteria() {
  83.             return criteria;
  84.         }
  85.  
  86.         protected void addCriterion(String condition) {
  87.             if (condition == null) {
  88.                 throw new RuntimeException("Value for condition cannot be null");
  89.             }
  90.             criteria.add(new Criterion(condition));
  91.         }
  92.  
  93.         protected void addCriterion(String condition, Object value, String property) {
  94.             if (value == null) {
  95.                 throw new RuntimeException("Value for " + property + " cannot be null");
  96.             }
  97.             criteria.add(new Criterion(condition, value));
  98.         }
  99.  
  100.         protected void addCriterion(String condition, Object value1, Object value2, String property) {
  101.             if (value1 == null || value2 == null) {
  102.                 throw new RuntimeException("Between values for " + property + " cannot be null");
  103.             }
  104.             criteria.add(new Criterion(condition, value1, value2));
  105.         }
  106.  
  107.         public Criteria andIdIsNull() {
  108.             addCriterion("id is null");
  109.             return (Criteria) this;
  110.         }
  111.  
  112.         public Criteria andIdIsNotNull() {
  113.             addCriterion("id is not null");
  114.             return (Criteria) this;
  115.         }
  116.  
  117.         public Criteria andIdEqualTo(Integer value) {
  118.             addCriterion("id =", value, "id");
  119.             return (Criteria) this;
  120.         }
  121.  
  122.         public Criteria andIdNotEqualTo(Integer value) {
  123.             addCriterion("id <>", value, "id");
  124.             return (Criteria) this;
  125.         }
  126.  
  127.         public Criteria andIdGreaterThan(Integer value) {
  128.             addCriterion("id >", value, "id");
  129.             return (Criteria) this;
  130.         }
  131.  
  132.         public Criteria andIdGreaterThanOrEqualTo(Integer value) {
  133.             addCriterion("id >=", value, "id");
  134.             return (Criteria) this;
  135.         }
  136.  
  137.         public Criteria andIdLessThan(Integer value) {
  138.             addCriterion("id <", value, "id");
  139.             return (Criteria) this;
  140.         }
  141.  
  142.         public Criteria andIdLessThanOrEqualTo(Integer value) {
  143.             addCriterion("id <=", value, "id");
  144.             return (Criteria) this;
  145.         }
  146.  
  147.         public Criteria andIdIn(List<Integer> values) {
  148.             addCriterion("id in", values, "id");
  149.             return (Criteria) this;
  150.         }
  151.  
  152.         public Criteria andIdNotIn(List<Integer> values) {
  153.             addCriterion("id not in", values, "id");
  154.             return (Criteria) this;
  155.         }
  156.  
  157.         public Criteria andIdBetween(Integer value1, Integer value2) {
  158.             addCriterion("id between", value1, value2, "id");
  159.             return (Criteria) this;
  160.         }
  161.  
  162.         public Criteria andIdNotBetween(Integer value1, Integer value2) {
  163.             addCriterion("id not between", value1, value2, "id");
  164.             return (Criteria) this;
  165.         }
  166.  
  167.         public Criteria andSexIsNull() {
  168.             addCriterion("sex is null");
  169.             return (Criteria) this;
  170.         }
  171.  
  172.         public Criteria andSexIsNotNull() {
  173.             addCriterion("sex is not null");
  174.             return (Criteria) this;
  175.         }
  176.  
  177.         public Criteria andSexEqualTo(String value) {
  178.             addCriterion("sex =", value, "sex");
  179.             return (Criteria) this;
  180.         }
  181.  
  182.         public Criteria andSexNotEqualTo(String value) {
  183.             addCriterion("sex <>", value, "sex");
  184.             return (Criteria) this;
  185.         }
  186.  
  187.         public Criteria andSexGreaterThan(String value) {
  188.             addCriterion("sex >", value, "sex");
  189.             return (Criteria) this;
  190.         }
  191.  
  192.         public Criteria andSexGreaterThanOrEqualTo(String value) {
  193.             addCriterion("sex >=", value, "sex");
  194.             return (Criteria) this;
  195.         }
  196.  
  197.         public Criteria andSexLessThan(String value) {
  198.             addCriterion("sex <", value, "sex");
  199.             return (Criteria) this;
  200.         }
  201.  
  202.         public Criteria andSexLessThanOrEqualTo(String value) {
  203.             addCriterion("sex <=", value, "sex");
  204.             return (Criteria) this;
  205.         }
  206.  
  207.         public Criteria andSexLike(String value) {
  208.             addCriterion("sex like", value, "sex");
  209.             return (Criteria) this;
  210.         }
  211.  
  212.         public Criteria andSexNotLike(String value) {
  213.             addCriterion("sex not like", value, "sex");
  214.             return (Criteria) this;
  215.         }
  216.  
  217.         public Criteria andSexIn(List<String> values) {
  218.             addCriterion("sex in", values, "sex");
  219.             return (Criteria) this;
  220.         }
  221.  
  222.         public Criteria andSexNotIn(List<String> values) {
  223.             addCriterion("sex not in", values, "sex");
  224.             return (Criteria) this;
  225.         }
  226.  
  227.         public Criteria andSexBetween(String value1, String value2) {
  228.             addCriterion("sex between", value1, value2, "sex");
  229.             return (Criteria) this;
  230.         }
  231.  
  232.         public Criteria andSexNotBetween(String value1, String value2) {
  233.             addCriterion("sex not between", value1, value2, "sex");
  234.             return (Criteria) this;
  235.         }
  236.  
  237.         public Criteria andNameIsNull() {
  238.             addCriterion("name is null");
  239.             return (Criteria) this;
  240.         }
  241.  
  242.         public Criteria andNameIsNotNull() {
  243.             addCriterion("name is not null");
  244.             return (Criteria) this;
  245.         }
  246.  
  247.         public Criteria andNameEqualTo(String value) {
  248.             addCriterion("name =", value, "name");
  249.             return (Criteria) this;
  250.         }
  251.  
  252.         public Criteria andNameNotEqualTo(String value) {
  253.             addCriterion("name <>", value, "name");
  254.             return (Criteria) this;
  255.         }
  256.  
  257.         public Criteria andNameGreaterThan(String value) {
  258.             addCriterion("name >", value, "name");
  259.             return (Criteria) this;
  260.         }
  261.  
  262.         public Criteria andNameGreaterThanOrEqualTo(String value) {
  263.             addCriterion("name >=", value, "name");
  264.             return (Criteria) this;
  265.         }
  266.  
  267.         public Criteria andNameLessThan(String value) {
  268.             addCriterion("name <", value, "name");
  269.             return (Criteria) this;
  270.         }
  271.  
  272.         public Criteria andNameLessThanOrEqualTo(String value) {
  273.             addCriterion("name <=", value, "name");
  274.             return (Criteria) this;
  275.         }
  276.  
  277.         public Criteria andNameLike(String value) {
  278.             addCriterion("name like", value, "name");
  279.             return (Criteria) this;
  280.         }
  281.  
  282.         public Criteria andNameNotLike(String value) {
  283.             addCriterion("name not like", value, "name");
  284.             return (Criteria) this;
  285.         }
  286.  
  287.         public Criteria andNameIn(List<String> values) {
  288.             addCriterion("name in", values, "name");
  289.             return (Criteria) this;
  290.         }
  291.  
  292.         public Criteria andNameNotIn(List<String> values) {
  293.             addCriterion("name not in", values, "name");
  294.             return (Criteria) this;
  295.         }
  296.  
  297.         public Criteria andNameBetween(String value1, String value2) {
  298.             addCriterion("name between", value1, value2, "name");
  299.             return (Criteria) this;
  300.         }
  301.  
  302.         public Criteria andNameNotBetween(String value1, String value2) {
  303.             addCriterion("name not between", value1, value2, "name");
  304.             return (Criteria) this;
  305.         }
  306.     }
  307.  
  308.     public static class Criteria extends GeneratedCriteria {
  309.  
  310.         protected Criteria() {
  311.             super();
  312.         }
  313.     }
  314.  
  315.     public static class Criterion {
  316.         private String condition;
  317.  
  318.         private Object value;
  319.  
  320.         private Object secondValue;
  321.  
  322.         private boolean noValue;
  323.  
  324.         private boolean singleValue;
  325.  
  326.         private boolean betweenValue;
  327.  
  328.         private boolean listValue;
  329.  
  330.         private String typeHandler;
  331.  
  332.         public String getCondition() {
  333.             return condition;
  334.         }
  335.  
  336.         public Object getValue() {
  337.             return value;
  338.         }
  339.  
  340.         public Object getSecondValue() {
  341.             return secondValue;
  342.         }
  343.  
  344.         public boolean isNoValue() {
  345.             return noValue;
  346.         }
  347.  
  348.         public boolean isSingleValue() {
  349.             return singleValue;
  350.         }
  351.  
  352.         public boolean isBetweenValue() {
  353.             return betweenValue;
  354.         }
  355.  
  356.         public boolean isListValue() {
  357.             return listValue;
  358.         }
  359.  
  360.         public String getTypeHandler() {
  361.             return typeHandler;
  362.         }
  363.  
  364.         protected Criterion(String condition) {
  365.             super();
  366.             this.condition = condition;
  367.             this.typeHandler = null;
  368.             this.noValue = true;
  369.         }
  370.  
  371.         protected Criterion(String condition, Object value, String typeHandler) {
  372.             super();
  373.             this.condition = condition;
  374.             this.value = value;
  375.             this.typeHandler = typeHandler;
  376.             if (value instanceof List<?>) {
  377.                 this.listValue = true;
  378.             } else {
  379.                 this.singleValue = true;
  380.             }
  381.         }
  382.  
  383.         protected Criterion(String condition, Object value) {
  384.             this(condition, value, null);
  385.         }
  386.  
  387.         protected Criterion(String condition, Object value, Object secondValue, String typeHandler) {
  388.             super();
  389.             this.condition = condition;
  390.             this.value = value;
  391.             this.secondValue = secondValue;
  392.             this.typeHandler = typeHandler;
  393.             this.betweenValue = true;
  394.         }
  395.  
  396.         protected Criterion(String condition, Object value, Object secondValue) {
  397.             this(condition, value, secondValue, null);
  398.         }
  399.     }
  400. }
  1. UserMapper.java
  1. package com.ssm.dao;
  2. import com.ssm.pojo.User;
  3. import com.ssm.pojo.UserExample;
  4. import java.util.List;
  5. import org.apache.ibatis.annotations.Param;
  6. public interface UserMapper {
  7.     int countByExample(UserExample example);
  8.  
  9.     int deleteByExample(UserExample example);
  10.  
  11.     int deleteByPrimaryKey(Integer id);
  12.  
  13.     int insert(User record);
  14.  
  15.     int insertSelective(User record);
  16.  
  17.     List<User> selectByExample(UserExample example);
  18.  
  19.     User selectByPrimaryKey(Integer id);
  20.  
  21.     int updateByExampleSelective(@Param("record") User record, @Param("example") UserExample example);
  22.  
  23.     int updateByExample(@Param("record") User record, @Param("example") UserExample example);
  24.  
  25.     int updateByPrimaryKeySelective(User record);
  26.  
  27.     int updateByPrimaryKey(User record);
  28. }

UserMapper.xml (注意标红的地方，主键已经在数据库中设置为自动递增，所以插入sql得手动配一下)

  1. <?xml version="1.0" encoding="UTF-8" ?>
  2. <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
  3. <mapper namespace="com.ssm.dao.UserMapper" >
  4.   <resultMap id="BaseResultMap" type="com.ssm.pojo.User" >
  5.     <id column="id" property="id" jdbcType="INTEGER" />
  6.     <result column="sex" property="sex" jdbcType="VARCHAR" />
  7.     <result column="name" property="name" jdbcType="VARCHAR" />
  8.   </resultMap>
  9.   <sql id="Example_Where_Clause" >
  10.     <where >
  11.       <foreach collection="oredCriteria" item="criteria" separator="or" >
  12.         <if test="criteria.valid" >
  13.           <trim prefix="(" suffix=")" prefixOverrides="and" >
  14.             <foreach collection="criteria.criteria" item="criterion" >
  15.               <choose >
  16.                 <when test="criterion.noValue" >
  17.                   and ${criterion.condition}
  18.                 </when>
  19.                 <when test="criterion.singleValue" >
  20.                   and ${criterion.condition} #{criterion.value}
  21.                 </when>
  22.                 <when test="criterion.betweenValue" >
  23.                   and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
  24.                 </when>
  25.                 <when test="criterion.listValue" >
  26.                   and ${criterion.condition}
  27.                   <foreach collection="criterion.value" item="listItem" open="(" close=")" separator="," >
  28.                     #{listItem}
  29.                   </foreach>
  30.                 </when>
  31.               </choose>
  32.             </foreach>
  33.           </trim>
  34.         </if>
  35.       </foreach>
  36.     </where>
  37.   </sql>
  38.   <sql id="Update_By_Example_Where_Clause" >
  39.     <where >
  40.       <foreach collection="example.oredCriteria" item="criteria" separator="or" >
  41.         <if test="criteria.valid" >
  42.           <trim prefix="(" suffix=")" prefixOverrides="and" >
  43.             <foreach collection="criteria.criteria" item="criterion" >
  44.               <choose >
  45.                 <when test="criterion.noValue" >
  46.                   and ${criterion.condition}
  47.                 </when>
  48.                 <when test="criterion.singleValue" >
  49.                   and ${criterion.condition} #{criterion.value}
  50.                 </when>
  51.                 <when test="criterion.betweenValue" >
  52.                   and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
  53.                 </when>
  54.                 <when test="criterion.listValue" >
  55.                   and ${criterion.condition}
  56.                   <foreach collection="criterion.value" item="listItem" open="(" close=")" separator="," >
  57.                     #{listItem}
  58.                   </foreach>
  59.                 </when>
  60.               </choose>
  61.             </foreach>
  62.           </trim>
  63.         </if>
  64.       </foreach>
  65.     </where>
  66.   </sql>
  67.   <sql id="Base_Column_List" >
  68.     id, sex, name
  69.   </sql>
  70.   <select id="selectByExample" resultMap="BaseResultMap" parameterType="com.ssm.pojo.UserExample" >
  71.     select
  72.     <if test="distinct" >
  73.       distinct
  74.     </if>
  75.     <include refid="Base_Column_List" />
  76.     from user
  77.     <if test="_parameter != null" >
  78.       <include refid="Example_Where_Clause" />
  79.     </if>
  80.     <if test="orderByClause != null" >
  81.       order by ${orderByClause}
  82.     </if>
  83.   </select>
  84.   <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
  85.     select
  86.     <include refid="Base_Column_List" />
  87.     from user
  88.     where id = #{id,jdbcType=INTEGER}
  89.   </select>
  90.   <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
  91.     delete from user
  92.     where id = #{id,jdbcType=INTEGER}
  93.   </delete>
  94.   <delete id="deleteByExample" parameterType="com.ssm.pojo.UserExample" >
  95.     delete from user
  96.     <if test="_parameter != null" >
  97.       <include refid="Example_Where_Clause" />
  98.     </if>
  99.   </delete>
  100.   <insert id="insert" parameterType="com.ssm.pojo.User" useGeneratedKeys="true" keyProperty="id">
  101.     insert into user (sex, name
  102.       )
  103.     values (#{sex,jdbcType=VARCHAR}, #{name,jdbcType=VARCHAR}
  104.       )
  105.   </insert>
  106.   <insert id="insertSelective" parameterType="com.ssm.pojo.User" >
  107.     insert into user
  108.     <trim prefix="(" suffix=")" suffixOverrides="," >
  109.       <if test="id != null" >
  110.         id,
  111.       </if>
  112.       <if test="sex != null" >
  113.         sex,
  114.       </if>
  115.       <if test="name != null" >
  116.         name,
  117.       </if>
  118.     </trim>
  119.     <trim prefix="values (" suffix=")" suffixOverrides="," >
  120.       <if test="id != null" >
  121.         #{id,jdbcType=INTEGER},
  122.       </if>
  123.       <if test="sex != null" >
  124.         #{sex,jdbcType=VARCHAR},
  125.       </if>
  126.       <if test="name != null" >
  127.         #{name,jdbcType=VARCHAR},
  128.       </if>
  129.     </trim>
  130.   </insert>
  131.   <select id="countByExample" parameterType="com.ssm.pojo.UserExample" resultType="java.lang.Integer" >
  132.     select count(*) from user
  133.     <if test="_parameter != null" >
  134.       <include refid="Example_Where_Clause" />
  135.     </if>
  136.   </select>
  137.   <update id="updateByExampleSelective" parameterType="map" >
  138.     update user
  139.     <set >
  140.       <if test="record.id != null" >
  141.         id = #{record.id,jdbcType=INTEGER},
  142.       </if>
  143.       <if test="record.sex != null" >
  144.         sex = #{record.sex,jdbcType=VARCHAR},
  145.       </if>
  146.       <if test="record.name != null" >
  147.         name = #{record.name,jdbcType=VARCHAR},
  148.       </if>
  149.     </set>
  150.     <if test="_parameter != null" >
  151.       <include refid="Update_By_Example_Where_Clause" />
  152.     </if>
  153.   </update>
  154.   <update id="updateByExample" parameterType="map" >
  155.     update user
  156.     set id = #{record.id,jdbcType=INTEGER},
  157.       sex = #{record.sex,jdbcType=VARCHAR},
  158.       name = #{record.name,jdbcType=VARCHAR}
  159.     <if test="_parameter != null" >
  160.       <include refid="Update_By_Example_Where_Clause" />
  161.     </if>
  162.   </update>
  163.   <update id="updateByPrimaryKeySelective" parameterType="com.ssm.pojo.User" >
  164.     update user
  165.     <set >
  166.       <if test="sex != null" >
  167.         sex = #{sex,jdbcType=VARCHAR},
  168.       </if>
  169.       <if test="name != null" >
  170.         name = #{name,jdbcType=VARCHAR},
  171.       </if>
  172.     </set>
  173.     where id = #{id,jdbcType=INTEGER}
  174.   </update>
  175.   <update id="updateByPrimaryKey" parameterType="com.ssm.pojo.User" >
  176.     update user
  177.     set sex = #{sex,jdbcType=VARCHAR},
  178.       name = #{name,jdbcType=VARCHAR}
  179.     where id = #{id,jdbcType=INTEGER}
  180.   </update>
  181. </mapper>

　　

新建一个vo类，UserVo.java

  1. package com.ssm.vo;
  2.  
  3. public class UserVo {
  4. 	private String id;
  5.  
  6.     　　private String sex;
  7.  
  8.     　　private String name;
  9.  
  10. 	public String getId() {
  11. 		return id;
  12. 	}
  13.  
  14. 	public void setId(String id) {
  15. 		this.id = id;
  16. 	}
  17.  
  18. 	public String getSex() {
  19. 		return sex;
  20. 	}
  21.  
  22. 	public void setSex(String sex) {
  23. 		this.sex = sex;
  24. 	}
  25.  
  26. 	public String getName() {
  27. 		return name;
  28. 	}
  29.  
  30. 	public void setName(String name) {
  31. 		this.name = name;
  32. 	}
  33.  
  34. }

　　

新建一个service接口，IUserService.java

  1. package com.ssm.service;
    import java.util.Map;
    import com.ssm.vo.UserVo;
  2. public interface IUserService {
  3.  
  4. 	public Map<String,String> onSave(UserVo userVo);
  5. }

实现IUserService接口，UserServiceImpl.java

  1. package com.ssm.service.impl;
  2.  
  3. import java.util.HashMap;
  4. import java.util.Map;
  5.  
  6. import org.springframework.beans.factory.annotation.Autowired;
  7. import org.springframework.stereotype.Service;
  8.  
  9. import com.ssm.dao.UserMapper;
  10. import com.ssm.pojo.User;
  11. import com.ssm.service.IUserService;
  12. import com.ssm.vo.UserVo;
  13.  
  14. @Service
  15. public class UserServiceImpl implements IUserService{
  16.  
  17. 	@Autowired
  18. 	private UserMapper userMapper;
  19.  
  20. 	@Override
  21. 	public Map<String, String> onSave(UserVo userVo) {
  22. 		Map<String, String> map = new HashMap<String,String>();
  23. 		try {
  24. 			User user = new User();
  25. 			user.setName(userVo.getName());
  26. 			user.setSex(userVo.getSex());
  27. 			int i = userMapper.insert(user);
  28. 			if(i > 0){
  29. 				map.put("status", "Y");
  30. 				map.put("message", "新增成功");
  31. 			}
  32. 		} catch (Exception e) {
  33. 			e.printStackTrace();
  34. 		}
  35. 		return map;
  36. 	}
  37.  
  38. }

　

新建一个control类，UserController.java

  1. package com.ssm.controller;
  2.  
  3. import java.util.HashMap;
  4. import java.util.Map;
  5.  
  6. import org.springframework.beans.factory.annotation.Autowired;
  7. import org.springframework.stereotype.Controller;
  8. import org.springframework.web.bind.annotation.RequestMapping;
  9. import org.springframework.web.bind.annotation.ResponseBody;
  10.  
  11. import com.ssm.service.IUserService;
  12. import com.ssm.vo.UserVo;
  13.  
  14. @RequestMapping("/user")
  15. @Controller
  16. public class UserController {
  17. 	@Autowired
  18. 	private IUserService userService;
  19.  
  20. 	@RequestMapping("/onSave")
  21. 	@ResponseBody
  22. 	public Map<String,String> onSave(UserVo userVo){
  23. 		Map<String,String> map = new HashMap<String,String>();
  24. 		try {
  25. 			map = userService.onSave(userVo);
  26. 		} catch (Exception e) {
  27. 			e.printStackTrace();
  28. 		}
  29. 		return map;
  30. 	}
  31. }

在WebContent目录下，新增static目录，如下图所示：

新增index.jsp页面

  1. <%@ page language="java" contentType="text/html; charset=UTF-8"
  2. 	pageEncoding="UTF-8"%>
  3. <!DOCTYPE html>
  4. <html>
  5. <head>
  6. <base href="${pageContext.request.contextPath}/static/"></base>
  7. <meta charset="utf-8" />
  8. <script src="js/jquery-1.12.4.min.js"></script>
  9.  
  10. <script type="text/javascript">
  11. 	$(document).ready(function() {
  12. 		onSave();
  13. 	});
  14.  
  15. 	function onSave() {
  16. 		$.ajax({
  17. 			type : "post",
  18. 			url : "${pageContext.request.contextPath}/user/onSave",
  19. 			async : false,
  20. 			timeout : 30000,
  21. 			data : {
  22. 				"sex":"男",
  23. 				"name":"张三"
  24. 			},
  25. 			dataType : 'json',
  26. 			beforeSend : function(XMLHttpRequest) {
  27.  
  28. 			},
  29. 			success : function(result) {
  30. 				alert(result.message)
  31. 			},
  32. 			error : function() {
  33. 			}
  34. 		});
  35. 	}
  36.  
  37. </script>
  38. </head>
  39.  
  40. <body>
  41. 	欢迎您！！！！！！！！！！！！！！！！
  42. </body>
  43.  
  44. </html>

在浏览器地址栏，输入http://127.0.0.1:8080/SSM/index.jsp，回车，结果如下图所示

看下数据库表

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