SPRING IN ACTION 第4版笔记-第六章Rendering web views-001- Spring支持的View Resolver、InternalResourceViewResolver、JstlView

一、Spring支持的View Resolver

二、InternalResourceViewResolver

Spring supports JSP views in two ways:
 InternalResourceViewResolver 
 Spring provides two JSP tag libraries, one for form-to-model binding and one providing general utility features.

1.在java中定义

 package spittr.web;

 import org.springframework.context.MessageSource;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.support.ReloadableResourceBundleMessageSource;
 import org.springframework.web.servlet.ViewResolver;
 import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
 import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
 import org.springframework.web.servlet.view.InternalResourceViewResolver;

 @Configuration
 @EnableWebMvc
 @ComponentScan("spittr.web")
 public class WebConfig extends WebMvcConfigurerAdapter {

   @Bean
   public ViewResolver viewResolver() {
     InternalResourceViewResolver resolver = new InternalResourceViewResolver();
     resolver.setPrefix("/WEB-INF/views/");
     resolver.setSuffix(".jsp");
     return resolver;
   }

2.在xml中定义

 <?xml version="1.0" encoding="UTF-8"?>
 <beans:beans xmlns="http://www.springframework.org/schema/mvc"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:beans="http://www.springframework.org/schema/beans"
   xmlns:context="http://www.springframework.org/schema/context"
   xsi:schemaLocation="http://www.springframework.org/schema/mvc
     http://www.springframework.org/schema/mvc/spring-mvc.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.xsd">

   <annotation-driven />

   <context:component-scan base-package="spitter" />

   <beans:bean
     class="org.springframework.web.servlet.view.InternalResourceViewResolver">
     <beans:property name="prefix" value="/WEB-INF/views/" />
     <beans:property name="suffix" value=".jsp" />
   </beans:bean>

   <resources mapping="/resources/**" location="/resources/" />

   <!--
   <view-controller path="/" view-name="home" />
   -->

 </beans:beans>

By resolving JstlView , the JSTL tags will be given the Locale and any message source configured in Spring.

3.

 @Bean
 public ViewResolver viewResolver() {
     InternalResourceViewResolver resolver =
         new InternalResourceViewResolver();
     resolver.setPrefix("/WEB-INF/views/");
     resolver.setSuffix(".jsp");
     resolver.setViewClass(
         org.springframework.web.servlet.view.JstlView.class);
     return resolver;
 }

4.

 <bean
   id="viewResolver"
   class="org.springframework.web.servlet.view.
   InternalResourceViewResolver"
   p:prefix="/WEB-INF/views/"
   p:suffix=".jsp"
   p:viewClass="org.springframework.web.servlet.view.JstlView" />

Whether you use Java configuration or XML , this will ensure that JSTL ’s formatting and message tags will get the Locale and message sources configured in Spring.