spring全注解项目

时间：2023-03-09 02:29:09
spring全注解项目

项目结构如下:

spring全注解项目

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

spring全注解项目　

　　

　

　

　

　　

　

　　

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