SpringMVC案例3----spring3.0項目攔截器、ajax、文件上傳應用
阿新 • • 發佈：2017-06-19
his water aop pro 文件夾 創建 adapt 後綴 實現
再是springmvc-servlet.xml
web.xml
模型層的user類
service層的userService類
MyAjaxController類
FileUoLoadController類
攔截器層的MyInterceptor類
MyInterceptor2類
用於測試ajax的a.jsp文件
index.jsp
index2.jsp
upload_error.jsp
upload_ok.jsp
upload.jsp
至此整個springmvc重要的東西測試完成！
依然是項目結構圖和所需jar包圖：
顯示配置文件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註解 --> <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> <!-- 配置一個JdbcTemplate實例 --> <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"> <property name="dataSource" ref="dataSource"></property> </bean> <!-- 配置事務管理 --> <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開頭的方法不須要在事務中執行。有些情況是沒有必要使用事務的。比方獲取數據。開啟事務本身對性能本身是有一定的影響的 --> <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包中的全部的類進行掃描，以完畢bean的創建和自己主動依賴輸入功能 -->
<context:component-scan base-package="com.sxt"></context:component-scan>
<!-- 啟動springmvc的註解功能，完畢請求和註解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>
<!-- 對模型視圖名稱的解析，即在模型視圖名稱加入前後綴 -->
<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>
<!-- 處理文件上傳 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 默認編碼 -->
<property name="defaultEncoding" value="utf-8"></property>
<property name="maxInMemorySize" value="10240"/><!-- 最大內存大小 -->
<!-- 上傳後的文件夾名 -->
<property name="uploadTempDir" value="/upload/"></property>
<!-- 最大文件大小，-1為無限制 -->
<property name="maxUploadSize" value="-1"></property>
</bean>
<mvc:interceptors>
<!-- 攔截全部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>
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) ;
}
}
模型層的user類
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層的userService類
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層的userController類
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" ; //轉發，不寫默認就是轉發
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類
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("吳海旭","123")) ;
list.add(new User("韓敬瓊","456")) ;
System.out.println(list.size());
return list ;
}
}
FileUoLoadController類
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()){
//獲取本地存儲路徑，必須在項目下建立一個這種路徑
String path = this.servletContext.getRealPath("/upload/") ;
System.out.println(path);
//獲取文件名
String fileName = file.getOriginalFilename() ;
//獲取文件後綴名
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" ;
}
}
}
攔截器層的MyInterceptor類
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("最後運行，一般用於釋放資源！！！");
}
@Override
public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,
Object arg2, ModelAndView arg3) throws Exception {
// TODO Auto-generated method stub
System.out.println("action運行之後，生成視圖之前！。");
}
@Override
public boolean preHandle(HttpServletRequest arg0, HttpServletResponse arg1,
Object arg2) throws Exception {
// TODO Auto-generated method stub
System.out.println("action之前運行");
return true;
}
}
MyInterceptor2類
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;
}
}
用於測試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=張三") ;
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();">測試</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="註冊 " />
</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>上傳失敗！</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>上傳成功！</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>測試springmvc中的上傳的實現</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>
至此整個springmvc重要的東西測試完成！
SpringMVC案例3----spring3.0項目攔截器、ajax、文件上傳應用