SpringMVC之非注解开发(一)(纯手工打造)

时间:2021-04-22 05:47:40

本文讲到的SpringMVC使用的环境为:

1. spring包3.2

2. JDK 1.7

3. tomcat 7

4. eclipse


一、创建工程动态web工程

注意使用的编译JDK为1.7,tomcat运行JDK为1.7


二、导入相关jar包

commons-logging-1.1.3.jar

javax.servlet.jsp.jstl-api-1.2.1.jar

spring-aop-3.2.0.RELEASE.jar

spring-aspects-3.2.0.RELEASE.jar

spring-beans-3.2.0.RELEASE.jar

spring-context-3.2.0.RELEASE.jar

spring-context-support-3.2.0.RELEASE.jar

spring-core-3.2.0.RELEASE.jar

spring-expression-3.2.0.RELEASE.jar

spring-jdbc-3.2.0.RELEASE.jar

spring-orm-3.2.0.RELEASE.jar

spring-test-3.2.0.RELEASE.jar

spring-tx-3.2.0.RELEASE.jar

spring-web-3.2.0.RELEASE.jar

spring-webmvc-3.2.0.RELEASE.jar


三、新建视图

WebRoot目录下新建jsp文件夹

jsp文件夹中新建三个jsp文件:first.jsp、second.jsp、third.jsp

此DEMO的JSP内容任意编写


四、编写Handler

a、在src目录下新建包:com.liwei.ssm.controller

b、新建如下两个Controller类


ItemsController1.java

package com.liwei.ssm.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

/**
 * 实现controller接口的处理器
 * 
 * @author LIWEI
 * @version 1.0
 * @since 2016年5月27日 下午3:12:10
 */
public class ItemsController1 implements Controller {

	@Override
	public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
		// 调用service查询数据库,查询商品列表
		ModelAndView modelAndView = new ModelAndView("first");
		return modelAndView;
	}

}

ItemsController2.java

package com.liwei.ssm.controller;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.HttpRequestHandler;

/**
 * 实现controller接口的处理器
 * 
 * @author LIWEI
 * @version 1.0
 * @since 2016年5月27日 下午3:12:10
 */
public class ItemsController2 implements HttpRequestHandler {

	@Override
	public void handleRequest(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		// 此处完全和servlet的实现方式相同
		// 使用此方法,可以设置Response响应的数据格式
		PrintWriter out = response.getWriter();
		out.print("second");
		out.flush();
		out.close();
	}

}

五、配置web.xml

<?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">
  <display-name>Demo02_SpringMVC</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  <!-- springmvc前端控制器 -->
  <servlet>
  	<servlet-name>springmvc</servlet-name>
  	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  	<!-- contextConfigLocation配置springmvc加载的配置文件 -->
  	<!-- 如果没有配置contextConfigLocation,则默认加载/WEB-INF/servlet名称-servlet.xml(此处应是springmvc-servlet.xml) -->
  	<init-param>
  		<param-name>contextConfigLocation</param-name>
  		<param-value>classpath:springmvc.xml</param-value>
  	</init-param>
  	<load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
  	<servlet-name>springmvc</servlet-name>
  	<!-- 使用*.action或者/,不要配置为/* -->
  	<url-pattern>*.action</url-pattern>
  </servlet-mapping>
</web-app>

六、配置springmvc.xml

创建source folder,名称为config

在config文件夹中创建springmvc.xml文件

<?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:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">

	<!-- 配置Handler -->
	<bean id="ItemsController1" name="/queryItems.action" class="com.liwei.ssm.controller.ItemsController1"></bean>
	<!-- 配置另一个Handler -->
	<bean id="ItemsController2" class="com.liwei.ssm.controller.ItemsController2"></bean>

	<!-- 多个映射器可以并存,前端控制器判断url能让哪些映射器处理,就让正确的映射器处理。 -->
	<!-- 所有映射器都实现了HandlerMapping接口 -->
	<!-- 处理器映射器:第一种(两种允许并存) -->
	<!-- 将bean的name作为url进行查找,需要在配置handler时指定beanname(就是url) -->
	<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>
	
	<!-- 处理器映射器:第二种(两种允许并存) -->
	<!-- 简单URL映射器 -->
	<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
		<property name="mappings">
			<props>
				<prop key="/queryItems1.action">ItemsController1</prop>
				<prop key="/queryItems12.action">ItemsController1</prop>
				<prop key="/queryItems2.action">ItemsController2</prop>
			</props>
		</property>
	</bean>

	<!-- 处理器适配器 -->
	<!-- 所有处理器适配器都实现HandlerAdapter接口 -->
	<!-- 实现Controller接口 -->
	<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"></bean>
	
	<!-- 另一个非注解的适配器 -->
	<!-- 要求实现HttpRequestHandler接口 -->
	<bean class="org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter"></bean>

	<!-- 视图解析器 -->
	<!-- 支持JSP解析,默认使用jstl标签,则classpath下需要有jstl的包 -->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
		<property name="prefix" value="/jsp/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>
</beans>


七、部署访问

部署在tomcat中,不多说了

访问地址:

http://127.0.0.1:8080/Demo02_SpringMVC/queryItems.action

http://127.0.0.1:8080/Demo02_SpringMVC/queryItems1.action

http://127.0.0.1:8080/Demo02_SpringMVC/queryItems12.action

http://127.0.0.1:8080/Demo02_SpringMVC/queryItems2.action