SpringMVC案例3----spring3.0项目拦截器、ajax、文件上传应用
依然是项目结构图和所需jar包图:
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显示配置文件hib-config.xml
- <?xml version="1.0" encoding="UTF-8"?>
- <beans xmlns="http://www.springframework.org/schema/beans"
- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xmlns:aop="http://www.springframework.org/schema/aop"
- xmlns:tx="http://www.springframework.org/schema/tx"
- xmlns:context="http://www.springframework.org/schema/context"
- xsi:schemaLocation="
- http://www.springframework.org/schema/beans
- http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
- http://www.springframework.org/schema/tx
- http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
- http://www.springframework.org/schema/aop
- http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
- http://www.springframework.org/schema/context
- http://www.springframework.org/schema/context/spring-context-3.0.xsd
- ">
- <context:component-scan base-package="com.sxt"></context:component-scan>
- <!-- 支持aop注解 -->
- <aop:aspectj-autoproxy></aop:aspectj-autoproxy>
- <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
- <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
- <property name="url" value="jdbc:mysql://localhost:3306/crud"></property>
- <property name="username" value="root"></property>
- <property name="password" value="root"></property>
- </bean>
- <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
- <property name="dataSource">
- <ref bean="dataSource"></ref>
- </property>
- <property name="hibernateProperties">
- <props>
- <prop key="hibernate.dialect">
- org.hibernate.dialect.MySQLDialect
- </prop>
- <prop key="hibernate.show_sql">
- true
- </prop>
- <prop key="hibernate.hbm2ddl.auto">update</prop>
- </props>
- </property>
- <property name="packagesToScan">
- <value>com.sxt.po</value>
- </property>
- </bean>
- <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
- <property name="sessionFactory" ref="sessionFactory"></property>
- </bean>
- <!-- 配置一个JdbcTemplate实例 -->
- <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
- <property name="dataSource" ref="dataSource"></property>
- </bean>
- <!-- 配置事务管理 -->
- <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
- <property name="sessionFactory" ref="sessionFactory"></property>
- </bean>
- <tx:annotation-driven transaction-manager="txManager"/>
- <aop:config>
- <aop:pointcut expression="execution(public * com.sxt.service.impl.*.*(..))" id="businessService"/>
- <aop:advisor advice-ref="txAdvice" pointcut-ref="businessService"/>
- </aop:config>
- <tx:advice id="txAdvice" transaction-manager="txManager">
- <tx:attributes>
- <tx:method name="find*" read-only="true" propagation="NOT_SUPPORTED"/>
- <!-- get开头的方法不须要在事务中执行。有些情况是没有必要使用事务的。比方获取数据。开启事务本身对性能本身是有一定的影响的 -->
- <tx:method name="*"/>
- </tx:attributes>
- </tx:advice>
- </beans>
再是springmvc-servlet.xml
- <?xml version="1.0" encoding="UTF-8"?>
- <beans xmlns="http://www.springframework.org/schema/beans"
- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xmlns:p="http://www.springframework.org/schema/p"
- xmlns:mvc="http://www.springframework.org/schema/mvc"
- xmlns:context="http://www.springframework.org/schema/context"
- xmlns:util="http://www.springframework.org/schema/util"
- xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
- http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
- http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
- http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">
- <!-- 対web包中的全部的类进行扫描,以完毕bean的创建和自己主动依赖输入功能 -->
- <context:component-scan base-package="com.sxt"></context:component-scan>
- <!-- 启动springmvc的注解功能,完毕请求和注解POJO的映射 -->
- <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
- <property name="cacheSeconds" value="0"></property>
- <property name="messageConverters">
- <list>
- <bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
- </bean>
- </list>
- </property>
- </bean>
- <!-- 对模型视图名称的解析,即在模型视图名称加入前后缀 -->
- <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
- <property name="suffix" value=".jsp"></property>
- <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
- </bean>
- <!-- 处理文件上传 -->
- <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
- <!-- 默认编码 -->
- <property name="defaultEncoding" value="utf-8"></property>
- <property name="maxInMemorySize" value="10240"/><!-- 最大内存大小 -->
- <!-- 上传后的文件夹名 -->
- <property name="uploadTempDir" value="/upload/"></property>
- <!-- 最大文件大小,-1为无限制 -->
- <property name="maxUploadSize" value="-1"></property>
- </bean>
- <mvc:interceptors>
- <!-- 拦截全部springmvc的url -->
- <bean class="com.sxt.interceptor.MyInterceptor"></bean>
- <mvc:interceptor>
- <mvc:mapping path="/user.do"/>
- <bean class="com.sxt.interceptor.MyInterceptor2"></bean>
- </mvc:interceptor>
- </mvc:interceptors>
- </beans>
web.xml
- <?xml version="1.0" encoding="UTF-8"?>
- <web-app version="2.5"
- xmlns="http://java.sun.com/xml/ns/javaee"
- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
- http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
- <servlet>
- <servlet-name>springmvc</servlet-name>
- <servlet-class>
- org.springframework.web.servlet.DispatcherServlet
- </servlet-class>
- <init-param>
- <param-name>contextConfigLocation</param-name>
- <param-value>
- /WEB-INF/hib-config.xml,/WEB-INF/springmvc-servlet.xml
- </param-value>
- </init-param>
- <load-on-startup>1</load-on-startup>
- </servlet>
- <servlet-mapping>
- <servlet-name>springmvc</servlet-name>
- <url-pattern>*.do</url-pattern>
- </servlet-mapping>
- </web-app>
dao层的userDao
- package com.sxt.dao;
- import javax.annotation.Resource;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.beans.factory.annotation.Qualifier;
- import org.springframework.orm.hibernate3.HibernateTemplate;
- import org.springframework.stereotype.Component;
- import org.springframework.stereotype.Repository;
- import com.sxt.po.User;
- @Repository("userDao")
- public class UserDao {
- @Autowired
- private HibernateTemplate hibernateTemplate ;
- public void add(User u){
- System.out.println("userDao.add()");
- hibernateTemplate.save(u) ;
- }
- }
模型层的user类
- package com.sxt.po;
- import javax.persistence.Entity;
- import javax.persistence.GeneratedValue;
- import javax.persistence.GenerationType;
- import javax.persistence.Id;
- @Entity
- public class User {
- private int id ;
- private String name ;
- private String pwd ;
- public User(){}
- public User(String name,String pwd){
- this.name = name ;
- this.pwd = pwd ;
- }
- @Id
- @GeneratedValue(strategy=GenerationType.AUTO)
- public int getId() {
- return id;
- }
- public void setId(int id) {
- this.id = id;
- }
- public String getName() {
- return name;
- }
- public void setName(String name) {
- this.name = name;
- }
- public String getPwd() {
- return pwd;
- }
- public void setPwd(String pwd) {
- this.pwd = pwd;
- }
- }
service层的userService类
- package com.sxt.service;
- import javax.annotation.Resource;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.stereotype.Service;
- import com.sxt.dao.UserDao;
- import com.sxt.po.User;
- @Service("userService")
- public class UserService {
- @Autowired
- private UserDao userDao ;
- public void add(String name){
- System.out.println("UserService.add()");
- User u = new User() ;
- u.setName(name) ;
- userDao.add(u) ;
- }
- }
controller层的userController类
- package com.sxt.action;
- import javax.annotation.Resource;
- import javax.servlet.http.HttpServletRequest;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.ui.ModelMap;
- import org.springframework.web.bind.annotation.RequestMapping;
- import org.springframework.web.bind.annotation.RequestParam;
- import org.springframework.web.bind.annotation.SessionAttributes;
- import com.sxt.service.UserService;
- @org.springframework.stereotype.Controller("userController")
- @RequestMapping("/user.do")
- @SessionAttributes({"uname"})
- public class UserController{
- @Autowired
- private UserService userService ;
- @RequestMapping(params="method=reg")
- public String reg(String uname){
- System.out.println("UserController.reg()");
- userService.add(uname) ;
- return "index" ;
- }
- @RequestMapping(params="method=reg2")
- public String reg2(@RequestParam("uname")String name,ModelMap map){
- System.out.println("UserController.reg2()");
- userService.add(name) ;
- map.put("b", "bbb") ;
- return "index" ;
- }
- @RequestMapping(params="method=reg3")
- public String reg3(String uname,ModelMap map){
- System.out.println("UserController.reg3()");
- userService.add(uname) ;
- System.out.println(uname);
- map.put("uname", uname) ;
- return "index" ;
- }
- @RequestMapping(params="method=reg4")
- public String reg4(String uname,ModelMap map){
- System.out.println("UserController.reg4()");
- // return "forward:user.do?
- method=reg3" ; //转发,不写默认就是转发
- return "redirect:http://www.baidu.com" ;//重定向
- }
- @RequestMapping(params="method=reg5")
- public String reg5(String uname){
- System.out.println("UserController.reg4()");
- return "redirect:http://www.baidu.com" ;//重定向
- }
- }
MyAjaxController类
- package com.sxt.action;
- import java.io.UnsupportedEncodingException;
- import java.util.ArrayList;
- import java.util.List;
- import org.springframework.stereotype.Controller;
- import org.springframework.web.bind.annotation.RequestMapping;
- import org.springframework.web.bind.annotation.RequestMethod;
- import org.springframework.web.bind.annotation.ResponseBody;
- import com.sxt.po.User;
- @Controller
- @RequestMapping("myajax.do")
- public class MyAjaxController {
- @RequestMapping(params="method=test2",method=RequestMethod.GET)
- public @ResponseBody List<User> test1(String uname) throws Exception{
- String uname2 = new String(uname.getBytes("iso8859-1"),"utf-8") ;
- System.out.println(uname2);
- System.out.println("MyAjaxController.test1()");
- List<User> list = new ArrayList<User>() ;
- list.add(new User("吴海旭","123")) ;
- list.add(new User("韩敬琼","456")) ;
- System.out.println(list.size());
- return list ;
- }
- }
FileUoLoadController类
- package com.sxt.action;
- import java.io.File;
- import java.util.Date;
- import javax.servlet.ServletContext;
- import org.apache.log4j.chainsaw.Main;
- import org.springframework.stereotype.Controller;
- import org.springframework.web.bind.annotation.RequestMapping;
- import org.springframework.web.bind.annotation.RequestMethod;
- import org.springframework.web.bind.annotation.RequestParam;
- import org.springframework.web.context.ServletContextAware;
- import org.springframework.web.multipart.commons.CommonsMultipartFile;
- @Controller("fileUpLoadController")
- public class FileUpLoadController implements ServletContextAware{
- private ServletContext servletContext ;
- @Override
- public void setServletContext(ServletContext servletContext) {
- // TODO Auto-generated method stub
- this.servletContext = servletContext ;
- }
- @RequestMapping(value="/upload.do",method=RequestMethod.POST)
- public String handleUploadData(String name,@RequestParam("file")CommonsMultipartFile file){
- if(!file.isEmpty()){
- //获取本地存储路径,必须在项目下建立一个这种路径
- String path = this.servletContext.getRealPath("/upload/") ;
- System.out.println(path);
- //获取文件名
- String fileName = file.getOriginalFilename() ;
- //获取文件后缀名
- String fileType = fileName.substring(fileName.lastIndexOf(".")) ;
- System.out.println(fileType);
- File file2 = new File(path,new Date().getTime()+fileType) ;
- try {
- file.getFileItem().write(file2) ;
- } catch (Exception e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- return "redirect:upload_ok.jsp" ;
- }else{
- return "redirect:upload_error.jsp" ;
- }
- }
- }
拦截器层的MyInterceptor类
- package com.sxt.interceptor;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- import org.springframework.web.servlet.HandlerInterceptor;
- import org.springframework.web.servlet.ModelAndView;
- public class MyInterceptor implements HandlerInterceptor{
- @Override
- public void afterCompletion(HttpServletRequest arg0,
- HttpServletResponse arg1, Object arg2, Exception arg3)
- throws Exception {
- // TODO Auto-generated method stub
- System.out.println("最后运行,一般用于释放资源!!!");
- }
- @Override
- public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,
- Object arg2, ModelAndView arg3) throws Exception {
- // TODO Auto-generated method stub
- System.out.println("action运行之后,生成视图之前!。");
- }
- @Override
- public boolean preHandle(HttpServletRequest arg0, HttpServletResponse arg1,
- Object arg2) throws Exception {
- // TODO Auto-generated method stub
- System.out.println("action之前运行");
- return true;
- }
- }
MyInterceptor2类
- package com.sxt.interceptor;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
- public class MyInterceptor2 extends HandlerInterceptorAdapter{
- @Override
- public boolean preHandle(HttpServletRequest request,
- HttpServletResponse response, Object handler) throws Exception {
- // TODO Auto-generated method stub
- System.out.println("MyInterceptor2.preHandle()");
- return true;
- }
- }
用于測试ajax的a.jsp文件
- <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
- <%
- String path = request.getContextPath();
- String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
- %>
- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
- <html>
- <head>
- <base href="<%=basePath%>">
- <title>My JSP 'a.jsp' starting page</title>
- <meta http-equiv="pragma" content="no-cache">
- <meta http-equiv="cache-control" content="no-cache">
- <meta http-equiv="expires" content="0">
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="This is my page">
- <!--
- <link rel="stylesheet" type="text/css" href="styles.css">
- -->
- <script>
- function createAjaxObj(){
- var req ;
- if(window.XMLHttpRequest){
- req = new XMLHttpRequest() ;
- }else{
- req = new ActiveXObject("Msxml2.XMLHTTP") ;
- }
- return req ;
- }
- function sendAjaxReq(){
- var req = createAjaxObj() ;
- req.open("get","myajax.do?method=test2&uname=张三") ;
- req.setRequestHeader("accept","application/json") ;
- req.onreadystatechange = function(){
- var msg = req.responseText ;
- eval("var result=" + msg) ;
- document.getElementById("div1").innerHTML = result[0].name ;
- }
- req.send(null) ;
- }
- </script>
- </head>
- <body>
- <a href="javascript:void(0);" onclick="sendAjaxReq();">測试</a>
- <div id="div1"></div>
- </body>
- </html>
index.jsp
- <%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
- <%
- String path = request.getContextPath();
- String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
- %>
- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
- <html>
- <head>
- <base href="<%=basePath%>">
- <title>My JSP 'index.jsp' starting page</title>
- <meta http-equiv="pragma" content="no-cache">
- <meta http-equiv="cache-control" content="no-cache">
- <meta http-equiv="expires" content="0">
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="This is my page">
- <!--
- <link rel="stylesheet" type="text/css" href="styles.css">
- -->
- </head>
- <body>
- ${requestScope.uname} <br />
- ${sessionScope.uname} <br />
- </body>
- </html>
index2.jsp
- <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
- <%
- String path = request.getContextPath();
- String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
- %>
- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
- <html>
- <head>
- <base href="<%=basePath%>">
- <title>My JSP 'index2.jsp' starting page</title>
- <meta http-equiv="pragma" content="no-cache">
- <meta http-equiv="cache-control" content="no-cache">
- <meta http-equiv="expires" content="0">
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="This is my page">
- <!--
- <link rel="stylesheet" type="text/css" href="styles.css">
- -->
- </head>
- <body>
- <form action="user.do">
- 姓名:<input type="text" name="uname"/><br />
- <input type="hidden" name="method" value="reg3">
- <input type="submit" value="注冊 " />
- </form>
- </body>
- </html>
upload_error.jsp
- <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
- <%
- String path = request.getContextPath();
- String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
- %>
- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
- <html>
- <head>
- <base href="<%=basePath%>">
- <title>My JSP 'upload_error.jsp' starting page</title>
- <meta http-equiv="pragma" content="no-cache">
- <meta http-equiv="cache-control" content="no-cache">
- <meta http-equiv="expires" content="0">
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="This is my page">
- <!--
- <link rel="stylesheet" type="text/css" href="styles.css">
- -->
- </head>
- <body>
- <h1>上传失败!</h1>
- </body>
- </html>
upload_ok.jsp
- <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
- <%
- String path = request.getContextPath();
- String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
- %>
- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
- <html>
- <head>
- <base href="<%=basePath%>">
- <title>My JSP 'upload_ok.jsp' starting page</title>
- <meta http-equiv="pragma" content="no-cache">
- <meta http-equiv="cache-control" content="no-cache">
- <meta http-equiv="expires" content="0">
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="This is my page">
- <!--
- <link rel="stylesheet" type="text/css" href="styles.css">
- -->
- </head>
- <body>
- <h1>上传成功!
- </h1>
- </body>
- </html>
upload.jsp
- <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
- <%
- String path = request.getContextPath();
- String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
- %>
- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
- <html>
- <head>
- <base href="<%=basePath%>">
- <title>測试springmvc中的上传的实现</title>
- <meta http-equiv="pragma" content="no-cache">
- <meta http-equiv="cache-control" content="no-cache">
- <meta http-equiv="expires" content="0">
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="This is my page">
- <!--
- <link rel="stylesheet" type="text/css" href="styles.css">
- -->
- </head>
- <body>
- <form action="upload.do" method="post" enctype="multipart/form-data">
- <input type="text" name="name" />
- <input type="file" name="file" />
- <input type="submit" />
- </form>
- </body>
- </html>
至此整个springmvc重要的东西測试完成!
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