1.   新建Maven项目 ssmnew

2.    pom.xml

  1. <project xmlns="http://maven.apache.org/POM/4.0.0"
  2.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
  4.         http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.  
  6.     <modelVersion>4.0.0</modelVersion>
  7.     <groupId>com.java</groupId>
  8.     <artifactId>ssmnew</artifactId>
  9.     <version>1.0.0-SNAPSHOT</version>
  10.     <packaging>war</packaging>
  11.     <name>${project.artifactId}</name>
  12.     <url>http://maven.apache.org</url>
  13.  
  14.     <!-- 配置版本常量 -->
  15.     <properties>
  16.         <jdk.version>1.8</jdk.version>
  17.         <spring.version>3.2.18.RELEASE</spring.version>
  18.         <mybatis.version>3.4.6</mybatis.version>
  19.     </properties>
  20.  
  21.     <dependencies>
  22.  
  23.         <!-- Spring -->
  24.         <dependency>
  25.             <groupId>org.springframework</groupId>
  26.             <artifactId>spring-webmvc</artifactId>
  27.             <version>${spring.version}</version>
  28.         </dependency>
  29.         <dependency>
  30.             <groupId>org.springframework</groupId>
  31.             <artifactId>spring-jdbc</artifactId>
  32.             <version>${spring.version}</version>
  33.         </dependency>
  34.         <dependency>
  35.             <groupId>com.fasterxml.jackson.core</groupId>
  36.             <artifactId>jackson-databind</artifactId>
  37.             <version>2.9.7</version>
  38.         </dependency>
  39.  
  40.         <!-- MyBatis -->
  41.         <dependency>
  42.             <groupId>org.mybatis</groupId>
  43.             <artifactId>mybatis</artifactId>
  44.             <version>${mybatis.version}</version>
  45.         </dependency>
  46.         <dependency>
  47.             <groupId>org.mybatis</groupId>
  48.             <artifactId>mybatis-spring</artifactId>
  49.             <version>1.3.2</version>
  50.         </dependency>
  51.  
  52.         <!-- 连接池 -->
  53.         <dependency>
  54.             <groupId>com.alibaba</groupId>
  55.             <artifactId>druid</artifactId>
  56.             <version>1.1.11</version>
  57.         </dependency>
  58.         <dependency>
  59.             <groupId>mysql</groupId>
  60.             <artifactId>mysql-connector-java</artifactId>
  61.             <version>5.1.47</version>
  62.         </dependency>
  63.  
  64.         <dependency>
  65.             <groupId>org.aspectj</groupId>
  66.             <artifactId>aspectjweaver</artifactId>
  67.             <version>1.8.13</version>
  68.         </dependency>
  69.         <dependency>
  70.             <groupId>javax.servlet</groupId>
  71.             <artifactId>javax.servlet-api</artifactId>
  72.             <version>4.0.1</version>
  73.             <scope>provided</scope>
  74.         </dependency>
  75.  
  76.         <dependency>
  77.             <groupId>log4j</groupId>
  78.             <artifactId>log4j</artifactId>
  79.             <version>1.2.17</version>
  80.         </dependency>
  81.         <dependency>
  82.             <groupId>commons-fileupload</groupId>
  83.             <artifactId>commons-fileupload</artifactId>
  84.             <version>1.3.3</version>
  85.         </dependency>
  86.  
  87.         <dependency>
  88.             <groupId>com.alibaba</groupId>
  89.             <artifactId>fastjson</artifactId>
  90.             <version>1.2.49</version>
  91.         </dependency>
  92.  
  93.     </dependencies>
  94.  
  95.     <build>
  96.         <finalName>${project.artifactId}</finalName>
  97.         <plugins>
  98.             <plugin>
  99.                 <groupId>org.apache.maven.plugins</groupId>
  100.                 <artifactId>maven-compiler-plugin</artifactId>
  101.                 <version>3.8.0</version>
  102.                 <configuration>
  103.                     <source>${jdk.version}</source>
  104.                     <target>${jdk.version}</target>
  105.                     <encoding>UTF-8</encoding>
  106.                 </configuration>
  107.             </plugin>
  108.         </plugins>
  109.     </build>
  110.  
  111. </project>

3.   web.xml

  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
  5.         http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
  6.     version="2.5">
  7.  
  8.     <display-name>ssmnew</display-name>
  9.     <welcome-file-list>
  10.         <welcome-file>index.jsp</welcome-file>
  11.     </welcome-file-list>
  12.  
  13.     <context-param>
  14.         <param-name>webAppRootKey</param-name>
  15.         <param-value>ssmnew</param-value>
  16.     </context-param>
  17.  
  18.     <listener>
  19.         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  20.     </listener>
  21.     <context-param>
  22.         <param-name>contextConfigLocation</param-name>
  23.         <param-value>classpath:applicationContext.xml</param-value>
  24.     </context-param>
  25.  
  26.     <servlet>
  27.         <servlet-name>ssmnew</servlet-name>
  28.         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  29.         <init-param>
  30.             <param-name>contextConfigLocation</param-name>
  31.             <param-value>classpath:springmvc-servlet.xml</param-value>
  32.         </init-param>
  33.         <load-on-startup>1</load-on-startup>
  34.     </servlet>
  35.  
  36.     <servlet-mapping>
  37.         <servlet-name>ssmnew</servlet-name>
  38.         <url-pattern>/</url-pattern>
  39.     </servlet-mapping>
  40.  
  41.     <filter>
  42.         <filter-name>characterEncodingFilter</filter-name>
  43.         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  44.         <init-param>
  45.             <param-name>encoding</param-name>
  46.             <param-value>UTF-8</param-value>
  47.         </init-param>
  48.         <init-param>
  49.             <param-name>forceEncoding</param-name>
  50.             <param-value>true</param-value>
  51.         </init-param>
  52.     </filter>
  53.     <filter-mapping>
  54.         <filter-name>characterEncodingFilter</filter-name>
  55.         <url-pattern>/*</url-pattern>
  56.     </filter-mapping>
  57.  
  58.     <listener>
  59.         <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
  60.     </listener>
  61.     <context-param>
  62.         <param-name>log4jConfigLocation</param-name>
  63.         <param-value>classpath:log4j.properties</param-value>
  64.     </context-param>
  65.  
  66.     <session-config>
  67.         <session-timeout>30</session-timeout>
  68.     </session-config>
  69. </web-app>

4.   /ssmnew/src/main/resources   目录下文件

5.   applicationContext.xml

  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"
  4.     xmlns:context="http://www.springframework.org/schema/context"
  5.     xmlns:aop="http://www.springframework.org/schema/aop"
  6.     xmlns:tx="http://www.springframework.org/schema/tx"
  7.     xsi:schemaLocation="http://www.springframework.org/schema/beans
  8.                     http://www.springframework.org/schema/beans/spring-beans.xsd
  9.                     http://www.springframework.org/schema/context
  10.                     http://www.springframework.org/schema/context/spring-context.xsd
  11.                     http://www.springframework.org/schema/tx
  12.                     http://www.springframework.org/schema/tx/spring-tx.xsd
  13.                     http://www.springframework.org/schema/aop
  14.                     http://www.springframework.org/schema/aop/spring-aop.xsd">
  15.  
  16.     <context:property-placeholder location="classpath:param.properties" />
  17.  
  18.     <!-- 配置连接池 -->
  19.     <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
  20.         <property name="url" value="${jdbc.url}" />
  21.         <property name="username" value="${jdbc.username}" />
  22.         <property name="password" value="${jdbc.password}" />
  23.         <property name="driverClassName" value="${jdbc.driver}" />
  24.         <property name="initialSize" value="5" />
  25.         <property name="maxActive" value="20" />
  26.     </bean>
  27.  
  28.     <!-- 配置数据库会话工厂 -->
  29.     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
  30.         <property name="dataSource" ref="dataSource" />
  31.     </bean>
  32.  
  33.     <!-- 配置映射包扫描路径 -->
  34.     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
  35.         <property name="basePackage" value="com.java.mapper" />
  36.     </bean>
  37.  
  38.     <!-- 配置事务管理器 -->
  39.     <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
  40.         <property name="dataSource" ref="dataSource" />
  41.     </bean>
  42.  
  43.     <!-- 配置通知 -->
  44.     <tx:advice id="txAdvice" transaction-manager="transactionManager">
  45.         <tx:attributes>
  46.             <tx:method name="get*" read-only="true" />
  47.             <tx:method name="find*" read-only="true" />
  48.             <tx:method name="query*" read-only="true" />
  49.             <tx:method name="add*" propagation="REQUIRED" read-only="false" rollback-for="Exception" />
  50.             <tx:method name="save*" propagation="REQUIRED" read-only="false" rollback-for="Exception" />
  51.             <tx:method name="insert*" propagation="REQUIRED" read-only="false" rollback-for="Exception" />
  52.             <tx:method name="update*" propagation="REQUIRED" read-only="false" rollback-for="Exception" />
  53.             <tx:method name="delete*" propagation="REQUIRED" read-only="false" rollback-for="Exception" />
  54.             <tx:method name="*" propagation="REQUIRES_NEW" read-only="false" rollback-for="Exception" />
  55.         </tx:attributes>
  56.     </tx:advice>
  57.  
  58.     <!-- 将事务作用到service包下所有类的所有方法 -->
  59.     <aop:config>
  60.         <aop:pointcut id="pointcut" expression="execution(* com.java.service..*.*(..))" />
  61.         <aop:advisor pointcut-ref="pointcut" advice-ref="txAdvice" />
  62.     </aop:config>
  63.  
  64.     <!-- 注解方式管理事务,需要在类上使用注解@Transactional -->
  65.     <tx:annotation-driven transaction-manager="transactionManager" />
  66.  
  67.     <context:component-scan base-package="com.java.service.impl" />
  68.     <context:annotation-config />
  69.  
  70. </beans>

6.   springmvc-servlet.xml

  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"
  4.     xmlns:context="http://www.springframework.org/schema/context"
  5.     xmlns:mvc="http://www.springframework.org/schema/mvc"
  6.     xmlns:aop="http://www.springframework.org/schema/aop"
  7.     xmlns:tx="http://www.springframework.org/schema/tx"
  8.     xsi:schemaLocation="http://www.springframework.org/schema/beans
  9.                     http://www.springframework.org/schema/beans/spring-beans.xsd
  10.                     http://www.springframework.org/schema/context
  11.                     http://www.springframework.org/schema/context/spring-context.xsd
  12.                     http://www.springframework.org/schema/mvc
  13.                     http://www.springframework.org/schema/mvc/spring-mvc.xsd
  14.                     http://www.springframework.org/schema/tx
  15.                     http://www.springframework.org/schema/tx/spring-tx.xsd
  16.                     http://www.springframework.org/schema/aop
  17.                     http://www.springframework.org/schema/aop/spring-aop.xsd">
  18.  
  19.     <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  20.         <!-- 前缀 -->
  21.         <property name="prefix" value="/WEB-INF/views/" />
  22.         <!-- 后缀 -->
  23.         <property name="suffix" value=".jsp" />
  24.     </bean>
  25.  
  26.     <!-- 上传文件 -->
  27.     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
  28.         <property name="maxUploadSize" value="4294967296"></property>
  29.     </bean>
  30.  
  31.     <!-- 配置资源 -->
  32.     <mvc:resources location="/WEB-INF/assets/" mapping="/assets/**"></mvc:resources>
  33.  
  34.     <mvc:annotation-driven>
  35.         <mvc:message-converters register-defaults="true">
  36.             <bean class="org.springframework.http.converter.StringHttpMessageConverter">
  37.                 <constructor-arg value="UTF-8" />
  38.             </bean>
  39.         </mvc:message-converters>
  40.     </mvc:annotation-driven>
  41.  
  42.     <context:component-scan base-package="com.java.controller" />
  43.     <context:annotation-config />
  44.  
  45. </beans>

7.   param.properties

  1. jdbc.driver=com.mysql.jdbc.Driver
  2. jdbc.url=jdbc:mysql://192.168.32.20:3306/ssmnew?useUnicode=true&characterEncoding=UTF-8
  3. jdbc.username=root
  4. jdbc.password=123456

8.   log4j.properties

  1. log4j.rootLogger= INFO, stdout
  2. log4j.logger.INFO=INFO,logfile
  3.  
  4. log4j.appender.stdout=org.apache.log4j.ConsoleAppender
  5. log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
  6. log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss.SSS} [%5p] [%c] - %m%n
  7.  
  8. log4j.appender.logfile=org.apache.log4j.DailyRollingFileAppender
  9. log4j.appender.logfile.File=G:/Java/logs/ssmnew/LogFile.log
  10. log4j.appender.logfile.DatePattern='_'yyyy-MM-dd'.log'
  11. log4j.appender.logfile.Threshold=INFO
  12. log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
  13. log4j.appender.logfile.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss} [%5p] - %m%n
  14. log4j.appender.logfile.Append=true

9.   创建数据库

  1. DROP DATABASE IF EXISTS ssmnew;
  2. CREATE DATABASE ssmnew;
  3. USE ssmnew;
  4. DROP TABLE IF EXISTS `user`;
  5. CREATE TABLE `user` (
  6.   `id` varchar(32) NOT NULL,
  7.   `username` varchar(32) NOT NULL,
  8.   `password` varchar(32) NOT NULL,
  9.   `age` int(3) DEFAULT NULL,
  10.   PRIMARY KEY (`id`)
  11. ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
  12.  
  13. ;

10.   User.java

  1. package com.java.pojo;
  2.  
  3. public class User {
  4.     private String id;
  5.  
  6.     private String username;
  7.  
  8.     private String password;
  9.  
  10.     private Integer age;
  11.  
  12.     public String getId() {
  13.         return id;
  14.     }
  15.  
  16.     public void setId(String id) {
  17.         this.id = id;
  18.     }
  19.  
  20.     public String getUsername() {
  21.         return username;
  22.     }
  23.  
  24.     public void setUsername(String username) {
  25.         this.username = username;
  26.     }
  27.  
  28.     public String getPassword() {
  29.         return password;
  30.     }
  31.  
  32.     public void setPassword(String password) {
  33.         this.password = password;
  34.     }
  35.  
  36.     public Integer getAge() {
  37.         return age;
  38.     }
  39.  
  40.     public void setAge(Integer age) {
  41.         this.age = age;
  42.     }
  43.  
  44.     @Override
  45.     public String toString() {
  46.         return "User [id=" + id + ", username=" + username + ", password=" + password + ", age=" + age + "]";
  47.     }
  48.  
  49. }

11.   UserMapper.java

  1. package com.java.mapper;
  2.  
  3. import java.util.List;
  4.  
  5. import com.java.pojo.User;
  6.  
  7. public interface UserMapper {
  8.  
  9.     Integer checkLogin(User user);
  10.  
  11.     List<User> findUserList(User user);
  12.  
  13.     void addUser(User user);
  14.  
  15.     void updateUser(User user);
  16.  
  17.     void deleteUser(User user);
  18.  
  19. }

12.   UserMapper.xml

  1. <?xml version="1.0" encoding="UTF-8" ?>
  2. <!DOCTYPE mapper
  3. PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  4. "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
  5.  
  6. <mapper namespace="com.java.mapper.UserMapper">
  7.  
  8.     <!-- 配置数据库字段和实体类映射 -->
  9.     <resultMap id="userMap" type="com.java.pojo.User">
  10.         <id property="id" column="id" />
  11.         <result property="username" column="username" />
  12.         <result property="password" column="password" />
  13.         <result property="age" column="age" />
  14.     </resultMap>
  15.  
  16.     <!-- 检查登录 -->
  17.     <select id="checkLogin" parameterType="com.java.pojo.User" resultType="java.lang.Integer">
  18.         select 1 from user where username=#{username} and password=#{password}
  19.     </select>
  20.  
  21.     <!-- 查询用户列表 -->
  22.     <select id="findUserList" parameterType="com.java.pojo.User" resultType="com.java.pojo.User">
  23.         select id,username,password,age from user
  24.     </select>
  25.  
  26.     <!-- 新增用户 -->
  27.     <insert id="addUser" parameterType="com.java.pojo.User" >
  28.         <selectKey keyProperty="id" order="BEFORE" resultType="java.lang.String">
  29.             select replace(uuid(), '-', '') as id from dual
  30.         </selectKey>
  31.         insert into user(id,username,password,age) values(#{id},#{username},#{password},#{age});
  32.     </insert>
  33.  
  34.     <!-- 修改用户信息 -->
  35.     <update id="updateUser" parameterType="com.java.pojo.User" >
  36.         update user set username=#{username}, password=#{password}, age=#{age} where id=#{id}
  37.     </update>
  38.  
  39.     <!-- 根据id删除用户 -->
  40.     <delete id="deleteUser" parameterType="java.lang.String">
  41.         delete from user where id=#{id}
  42.     </delete>
  43.  
  44. </mapper>

13.   UserService.java

  1. package com.java.service;
  2.  
  3. import java.util.List;
  4.  
  5. import com.java.pojo.User;
  6.  
  7. public interface UserService {
  8.  
  9.     Integer checkLogin(User user);
  10.  
  11.     List<User> findUserList(User user);
  12.  
  13.     void addOrUpdateUser(User user);
  14.  
  15.     void deleteUser(User user);
  16.  
  17. }

14.   UserServiceImpl.java

  1. package com.java.service.impl;
  2.  
  3. import java.util.List;
  4.  
  5. import org.springframework.beans.factory.annotation.Autowired;
  6. import org.springframework.stereotype.Service;
  7.  
  8. import com.java.mapper.UserMapper;
  9. import com.java.pojo.User;
  10. import com.java.service.UserService;
  11.  
  12. @Service("userService")
  13. public class UserServiceImpl implements UserService {
  14.  
  15.     @Autowired
  16.     private UserMapper userMapper;
  17.  
  18.     @Override
  19.     public Integer checkLogin(User user) {
  20.         return userMapper.checkLogin(user);
  21.     }
  22.  
  23.     @Override
  24.     public List<User> findUserList(User user) {
  25.         return userMapper.findUserList(user);
  26.     }
  27.  
  28.     @Override
  29.     public void addOrUpdateUser(User user) {
  30.         if (null == user.getId() || user.getId().isEmpty()) {
  31.             userMapper.addUser(user);
  32.         } else {
  33.             userMapper.updateUser(user);
  34.         }
  35.     }
  36.  
  37.     @Override
  38.     public void deleteUser(User user) {
  39.         userMapper.deleteUser(user);
  40.     }
  41.  
  42. }

15.   UserController.java

  1. package com.java.controller;
  2.  
  3. import java.util.List;
  4.  
  5. import org.apache.commons.logging.Log;
  6. import org.apache.commons.logging.LogFactory;
  7. import org.springframework.beans.factory.annotation.Autowired;
  8. import org.springframework.context.annotation.Scope;
  9. import org.springframework.stereotype.Controller;
  10. import org.springframework.ui.Model;
  11. import org.springframework.web.bind.annotation.ModelAttribute;
  12. import org.springframework.web.bind.annotation.RequestMapping;
  13. import org.springframework.web.bind.annotation.ResponseBody;
  14.  
  15. import com.java.pojo.User;
  16. import com.java.service.UserService;
  17.  
  18. @Controller
  19. @Scope("prototype")
  20. @RequestMapping("/user")
  21. public class UserController {
  22.  
  23.     private static final Log LOG = LogFactory.getLog("INFO");
  24.  
  25.     @Autowired
  26.     private UserService userService;
  27.  
  28.     @RequestMapping("/login")
  29.     public String login(@ModelAttribute User user, Model model) {
  30.         LOG.info("Into login");
  31.         System.out.println(user);
  32.  
  33.         // 检查用户名密码是否存在
  34.         Integer result = userService.checkLogin(user);
  35.         System.out.println("result: " + result);
  36.         LOG.info("result: " + result);
  37.  
  38.         // 绑定用户名密码输出返回
  39.         if (null == result) {
  40.             model.addAttribute("username", user.getUsername());
  41.             model.addAttribute("password", user.getPassword());
  42.             return "user/Login";
  43.         }
  44.  
  45.         LOG.info("Exit login");
  46.         return "user/Main";
  47.     }
  48.  
  49.     @ResponseBody
  50.     @RequestMapping("/findUserList")
  51.     public List<User> findUserList(@ModelAttribute User user) {
  52.         LOG.info("Into findUserList");
  53.         System.out.println(user);
  54.  
  55.         List<User> list = userService.findUserList(user);
  56.  
  57.         LOG.info("Exit findUserList");
  58.         return list;
  59.     }
  60.  
  61.     @RequestMapping("/toAddOrUpdateUser")
  62.     public String toAddOrUpdateUser(@ModelAttribute User user, Model model) {
  63.         LOG.info("Into toAddOrUpdateUser");
  64.         System.out.println("user: " + user);
  65.  
  66.         // 输出id，根据id是否为空，判断是新增还是修改
  67.         model.addAttribute("user", user);
  68.         LOG.info("Exit toAddOrUpdateUser");
  69.         return "user/AddOrUpdateUser";
  70.     }
  71.  
  72.     @RequestMapping("/addOrUpdateUser")
  73.     public String addOrUpdateUser(@ModelAttribute User user) {
  74.         LOG.info("Into addOrUpdateUser");
  75.         System.out.println("user: " + user);
  76.  
  77.         userService.addOrUpdateUser(user);
  78.  
  79.         System.out.println(user);
  80.         LOG.info("Exit addOrUpdateUser");
  81.         return "user/Main";
  82.     }
  83.  
  84.     @ResponseBody
  85.     @RequestMapping("/deleteUser")
  86.     public String deleteUser(@ModelAttribute User user) {
  87.         System.out.println(user);
  88.         LOG.info("Into deleteUser");
  89.  
  90.         userService.deleteUser(user);
  91.  
  92.         LOG.info("Exit deleteUser");
  93.         return "删除成功！";
  94.     }
  95.  
  96. }

16.   页面文件结构

index.jsp

  1. <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
  2. <%
  3.     String path = request.getContextPath();
  4.     String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";
  5. %>
  6.  
  7. <!DOCTYPE html>
  8. <html>
  9. <head>
  10. <base href="<%=basePath%>">
  11.  
  12. <title>登录</title>
  13. <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
  14. <script type="text/javascript">
  15.     function addUser() {
  16.         location.href = "user/toAddOrUpdateUser";
  17.     }
  18. </script>
  19. </head>
  20.  
  21. <body>
  22.     <form action="user/login" method="post">
  23.         <table>
  24.             <tr>
  25.                 <td>用户名：</td>
  26.                 <td><input name="username" /><br /></td>
  27.             </tr>
  28.             <tr>
  29.                 <td>密码：</td>
  30.                 <td><input type="password" name="password" /><br /></td>
  31.             </tr>
  32.             <tr>
  33.                 <td><input type="submit" value="登录" /></td>
  34.                 <td><input type="button" value="注册" onclick="addUser();" /></td>
  35.             </tr>
  36.         </table>
  37.  
  38.     </form>
  39.  
  40. </body>
  41.  
  42. </html>

Login.jsp

  1. <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
  2. <%
  3.     String path = request.getContextPath();
  4.     String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";
  5. %>
  6.  
  7. <!DOCTYPE html>
  8. <html>
  9. <head>
  10. <base href="<%=basePath%>">
  11.  
  12. <title>登录</title>
  13. <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
  14. <script type="text/javascript">
  15.     function addUser() {
  16.         location.href = "user/toAddOrUpdateUser";
  17.     }
  18. </script>
  19. </head>
  20.  
  21. <body>
  22.     <form action="user/login" method="post">
  23.         <table>
  24.             <tr>
  25.                 <td>用户名：</td>
  26.                 <td><input name="username" value="${username}" /><br /></td>
  27.             </tr>
  28.             <tr>
  29.                 <td>密码：</td>
  30.                 <td><input type="password" name="password" value="${password}" /><br /></td>
  31.             </tr>
  32.             <tr>
  33.                 <td><input type="submit" value="登录" /></td>
  34.                 <td><input type="button" value="注册" onclick="addUser();" /></td>
  35.             </tr>
  36.         </table>
  37.  
  38.     </form>
  39.  
  40. </body>
  41.  
  42. </html>

Main.jsp

  1. <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
  2. <%
  3.     String path = request.getContextPath();
  4.     String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";
  5. %>
  6.  
  7. <!DOCTYPE html>
  8. <html>
  9.     <head>
  10.         <base href="<%=basePath%>">
  11.  
  12.         <title>主页</title>
  13.         <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
  14.         <script src="assets/js/jquery-1.11.3.js"></script>
  15.         <style type="text/css">
  16.             td, th {
  17.                 border: 1px solid #AAA;
  18.             }
  19.         </style>
  20.         <script type="text/jscript">
  21.             $(function() {
  22.                 queryUserList();
  23.             });
  24.  
  25.             function queryUserList() {
  26.                 $.post("user/findUserList", {id: 1}, function(userList) {
  27.                     /* var userList = eval("(" + userList + ")"); */
  28.                     var line = null;
  29.                     $("#list").empty();
  30.                     for(var i in userList) {
  31.                         line = tr(td(userList[i].id) + td(userList[i].username) + td(userList[i].password) + td(userList[i].age) + td(addBtn() + delBtn()));
  32.                         $("#list").append(line);
  33.                     }
  34.                 });
  35.             }
  36.  
  37.             function tr(text) {
  38.                 return "<tr>" + text + "</tr>";
  39.             }
  40.  
  41.             function td(text) {
  42.                 if(!text) {
  43.                     text = "";
  44.                 }
  45.                 return "<td>" + text + "</td>";
  46.             }
  47.  
  48.             function addBtn() {
  49.                 return "<button onClick='update(this);'>修改</button>";
  50.             }
  51.  
  52.             function delBtn() {
  53.                 return "<button onClick='deleteUser(this);'>删除</button>";
  54.             }
  55.  
  56.             function update(obj) {
  57.                 var row = getRow(obj);
  58.  
  59.                 var user = {
  60.                         id: row.eq(0).text(),
  61.                         username: row.eq(1).text(),
  62.                         password: row.eq(2).text(),
  63.                         age: row.eq(3).text()
  64.                 }
  65.  
  66.                 var form = document.createElement("form");
  67.                 form.action = "user/toAddOrUpdateUser";
  68.                 form.method = "post";
  69.  
  70.                 var input = null;
  71.                 for(var key in user) {
  72.                     input = document.createElement("input");
  73.  
  74.                     input.type = "hidden";
  75.                     input.name = key;
  76.                     input.value = user[key];
  77.                     form.appendChild(input)
  78.                 }
  79.                 document.body.appendChild(form);
  80.                 form.submit();
  81.  
  82.             }
  83.  
  84.             function deleteUser(obj) {
  85.                 var row = getRow(obj);
  86.  
  87.                 var id = row.eq(0).text();
  88.                 $.post("user/deleteUser", {id: id}, function(data) {
  89.                     alert(data);
  90.                     queryUserList();
  91.                 });
  92.             }
  93.  
  94.             function getRow(obj) {
  95.                 return $(obj).parent().parent().children();
  96.             }
  97.         </script>
  98.     </head>
  99.  
  100.     <body>
  101.         <button onClick="location.href='user/toAddOrUpdateUser'">新增</button>
  102.         <div>
  103.             <table style="border-collapse: collapse;width: 800px;">
  104.                 <thead>
  105.                     <tr>
  106.                         <th>ID</th>
  107.                         <th>用户名</th>
  108.                         <th>密码</th>
  109.                         <th>年龄</th>
  110.                         <th>操作</th>
  111.                     </tr>
  112.                 </thead>
  113.                 <tbody id="list">
  114.                 </tbody>
  115.             </table>
  116.         </div>
  117.  
  118.     </body>
  119.  
  120. </html>

AddOrUpdateUser.jsp

  1. <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
  2. <%
  3.     String path = request.getContextPath();
  4.     String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";
  5. %>
  6.  
  7. <!DOCTYPE html>
  8. <html>
  9. <head>
  10. <base href="<%=basePath%>">
  11.  
  12. <title>新增用户</title>
  13. <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
  14. </head>
  15.  
  16. <body>
  17.     <form action="user/addOrUpdateUser" method="post">
  18.         <input name="id" value="${user.id}" type="hidden"/>
  19.         <table>
  20.             <tr>
  21.                 <td>用户名：</td>
  22.                 <td><input type="text" name="username" value="${user.username}"  /><br /></td>
  23.             </tr>
  24.             <tr>
  25.                 <td>密码：</td>
  26.                 <td><input type="password" name="password" value="${user.password}"  /><br /></td>
  27.             </tr>
  28.             <tr>
  29.                 <td>年龄：</td>
  30.                 <td><input type="text" name="age" value="${user.age}"  /><br /></td>
  31.             </tr>
  32.             <tr>
  33.                 <td colspan="2"><input type="submit" value="提交" /></td>
  34.             </tr>
  35.         </table>
  36.  
  37.     </form>
  38.  
  39. </body>
  40.  
  41. </html>

注意：

jquery-1.11.3.js 请自行下载，配置到Main.jsp文件中

https://code.jquery.com/jquery-1.11.3.js
   https://code.jquery.com/jquery-1.11.3.min.js

配置完成！

.

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