java框架--springmvc --intercepter-restfull + maven
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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 { public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { System.out.println("最后执行!!!一般用于释放资源!!"); } public void postHandle(HttpServletRequest request,HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { System.out.println("Action执行之后,生成视图之前执行!!"); } public boolean preHandle(HttpServletRequest request,HttpServletResponse response, Object handler) throws Exception { System.out.println("action之前执行!!!"); return true; //继续执行action } }
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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 { System.out.println("MyInterceptor2.preHandle()"); return true; //继续执行action } }
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package com.zhouwuji.controller; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; @Controller public class LoginController { /*@RequestMapping("/login.do") public ModelAndView login(String name,HttpServletRequest request,HttpServletResponse response){ ModelAndView mV=new ModelAndView(); mV.addObject("ad", name); mV.setViewName("index"); return mV; }*/ @RequestMapping("/login.do") public String login(String name,ModelMap modelMap){ System.out.println(name); modelMap.addAttribute("name",name); return "index"; } //delete?id=123 restful 风格请求 http://localhost:8080/project/abc/1/delete.do // @PathVariable int String 可以一个 @RequestMapping("/delete/{id}") public String hello(@PathVariable String id,ModelMap modelMap){ System.out.println(id); modelMap.addAttribute("name",id); return "index"; } // @PathVariable int String 多个 @RequestMapping("/{id}/{uid}/delete") public String hello1(@PathVariable String id,@PathVariable int uid,ModelMap modelMap){ System.out.println(id); System.out.println(uid); modelMap.addAttribute("name",id); return "index"; } /*action之前执行!!! MyInterceptor2.preHandle() sdf Action执行之后,生成视图之前执行!! 最后执行!!!一般用于释放资源!*/ }
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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> 值:${name} </body> </html>
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<?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:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd"> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/view/" /> <property name="suffix" value=".jsp" /> </bean> <context:component-scan base-package="com.zhouwuji.controller"></context:component-scan> <mvc:interceptors> <bean class="com.sxt.interceptor.MyInterceptor"></bean> <!-- 拦截所有springmvc的url! --> <mvc:interceptor> <mvc:mapping path="/login.do" /> <!--<mvc:mapping path="/test/*" />--> <bean class="com.sxt.interceptor.MyInterceptor2"></bean> </mvc:interceptor> </mvc:interceptors> </beans>
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<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>utf-8</param-value> </init-param> <init-param> <param-name>forceRequestEncoding</param-name> <param-value>true</param-value> </init-param> <init-param> <param-name>forceResponseEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
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<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <fieldset> <legend>form</legend> <form action="login.do" method="post"> 姓名 :<input type="text" name="name"> <input type="submit" value="提交"> </form> </fieldset> <a href="delete/abc.do"> restful风格请求 一个的参数</a> <a href="abc/1/delete.do"> restful风格请求 多个参数</a> </body> </html>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.zhouwuji.wuji</groupId> <artifactId>project</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <dependencies> <!-- https://mvnrepository.com/artifact/commons-logging/commons-logging --> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.1.1</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.1.6.RELEASE</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework/spring-context-support --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>4.1.6.RELEASE</version> </dependency> <!-- https://mvnrepository.com/artifact/jstl/jstl --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.2.2</version> </dependency> </dependencies> </project>