spring全注解项目
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项目结构如下:
spring配置
<?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" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd" >
<context:component-scan base-package="com.*" /><!-- 最好建一个父包，以便于扫描 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix"><value>/WEB-INF/pages/</value></property>
<property name="suffix"><value>.jsp</value></property>
</bean>
</beans>
web.xml配置
<web-app> <display-name>Spring MVC Application</display-name> <servlet> <servlet-name>mvc-dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>mvc-dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:mvc-dispatcher-servlet.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> </web-app>
spring里面有个类是读取properties文件的（这个和本工程无关，提一下）
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath:config.properties</value> </list> </property> </bean>
page下的hello.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 \'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> This is my JSP page. <br> 本次调用方法是<b>${message }</b> </body> </html>
controller类：
package com.controller;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.service.Myservice;
@Controller
@RequestMapping("/spring")
public class MyController{
@Autowired
private Myservice my;
@RequestMapping("/add")
public ModelAndView add(HttpServletRequest request,
HttpServletResponse response) {
System.out.println("----add----");
String xx=request.getParameter("name");
System.out.println(xx);
String name="123";
my.add(name);
return new ModelAndView("/hello", "message", "add");
}
@RequestMapping("/del")
public ModelAndView del(HttpServletRequest request,
HttpServletResponse response) {
System.out.println("----del----");
return new ModelAndView("/hello", "message", "del");
}
}
User类：
package com.model;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
@Component
@Scope("prototype") //设置成多例
public class User {
private int id=20;
private String name="liming";
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;
}
}
proxy类：
package com.proxy;
import org.springframework.stereotype.Component;
@Component
public class MyProxy {
public void add(){
System.out.println("MyProxy");
}
}
service接口:
package com.service;
public interface Myservice {
public void add(String name);
}
service实现类：
package com.service.impl;
import com.model.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.proxy.MyProxy;
import com.service.Myservice;
@Service
public class MyServiceImpl implements Myservice{
@Autowired
private MyProxy myProxy;
@Autowired
private User user;
@Override
public void add(String name) {
System.out.println("这是serviceImpl:"+name);
System.out.println(user.getName()+"今年"+user.getId()+"岁了");
myProxy.add();
}
}
用tomcat运行后，输入http://localhost:8080/spring/spring/add?name="xx"
控制台结果为：
----add---- "xx" 这是serviceImpl:123 liming今年20岁了 MyProxy
并且页面上显示
This is my JSP page. 本次调用方法是add
用到的基本包
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