30、(知識篇)SpringMVC07 Spring 自定義視圖

/**

* Spring 自定義視圖

* 1、需要配置bean org.springframework.web.servlet.view.BeanNameViewResolver

* 

* 2、自定義類中繼承view或者起子類view例如AbstractExcelView

* 

* @return

*/

測試類：

package com.spring.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.spring.view.TestView;

@Controller
public class TestController {
	
	/**
	 * Spring 自定義視圖
	 * 1、需要配置bean org.springframework.web.servlet.view.BeanNameViewResolver
	 * 
	 * 2、自定義類中繼承view或者起子類view例如AbstractExcelView
	 * 
	 * @return
	 */
	
	@RequestMapping("testTestView")
	public TestView testTestView(){
		TestView tv = new TestView();
		
		return tv;
	}
	
//	@RequestMapping("testTestView2")
//	public String testTestView2(){
//		
//		return "TestView";
//	}
	
}

TestView:

package com.spring.view;

import java.util.Map;

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

import org.springframework.stereotype.Component;
import org.springframework.web.servlet.View;

@Component
public class TestView implements View{

	@Override
	public String getContentType() {
		// TODO Auto-generated method stub
		return "text/html";
	}

	@Override
	public void render(Map<String, ?> map, HttpServletRequest request, HttpServletResponse response) throws Exception {
		// TODO Auto-generated method stub
		request.getRequestDispatcher("WEB-INF/views/index.jsp").forward(request, response);
		//response.sendRedirect("http://www.baidu.com");
		
	}
	
	

}

springmvc.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: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-4.3.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-4.3.xsd">
	<context:component-scan base-package="com.spring"></context:component-scan>
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="suffix" value=".jsp"></property>
		<property name="prefix" value="/WEB-INF/views/"></property>
	</bean>
	
	<!-- 配置可以使用自定義試圖 -->
	<bean class="org.springframework.web.servlet.view.BeanNameViewResolver">
		<property name="order" value="1"></property>
	</bean>
</beans>

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_3_0.xsd"
	id="WebApp_ID" version="3.0">
	<display-name>27SpringMVC04</display-name>
	<filter>
		<filter-name>HiddenHttpMethodFilter</filter-name>
		<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>HiddenHttpMethodFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<!-- The front controller of this Spring Web application, responsible for handling all application requests -->
	<servlet>
		<servlet-name>springDispatcherServlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:springmvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>

	<!-- Map all requests to the DispatcherServlet for handling -->
	<servlet-mapping>
		<servlet-name>springDispatcherServlet</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app>

web-inf/views/index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<base href="<%=basePath %>">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
	HelloWorld;
</body>
</html>