SpringMVC 配置多视图解析器(velocity,jsp)

1.自定义视图解析器

package com.zhaochao.controller;

import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.Set;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.ViewResolver;

/**
* 自定义视图解析(通过配置实现多视图整合,如jsp,velocity,freemarker,pdf,excel...)
* @author zhaochao
*
*/
public class JeeDevViewResolver implements ViewResolver  {

private static Log logger = LogFactory.getLog(JeeDevViewResolver.class);

public View resolveViewName(String viewName, Locale locale) throws Exception {
for(Map.Entry<Set<String>, ViewResolver> map : viewResolverMap.entrySet()){
Set<String> suffixs = map.getKey();
for(String suffix : suffixs){
System.out.println(suffix+" == "+viewName);
if (viewName.endsWith(suffix)){
ViewResolver viewResolver = map.getValue();
if(null != viewResolver){
if (logger.isDebugEnabled()) {
logger.debug("found viewResolver '" + viewResolver + "' for viewName '" + viewName+ "'");
}
return viewResolver.resolveViewName(viewName, locale);
}
}

}
}
if(defaultViewResolver != null){
return defaultViewResolver.resolveViewName(viewName+".jsp", locale);
}
// to allow for ViewResolver chaining
return null;
}
private Map<Set<String>,ViewResolver> viewResolverMap = new HashMap<Set<String>,ViewResolver>();
private ViewResolver defaultViewResolver = null;
public Map<Set<String>, ViewResolver> getViewResolverMap() {
return viewResolverMap;
}
public void setViewResolverMap(Map<Set<String>, ViewResolver> viewResolverMap) {
this.viewResolverMap = viewResolverMap;
}
public ViewResolver getDefaultViewResolver() {
return defaultViewResolver;
}
public void setDefaultViewResolver(ViewResolver defaultViewResolver) {
this.defaultViewResolver = defaultViewResolver;
}
}

2.SpringMVC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/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd" default-autowire="byName">

<!-- 自动扫描controller包下的所有类，使其认为spring mvc的控制器 -->
<context:component-scan base-package="com.zhaochao.controller" />

<!-- 避免IE执行AJAX时,返回JSON出现下载文件 -->
<bean id="mappingJacksonHttpMessageConverter"
class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>

<!-- 启动Spring MVC的注解功能，完成请求和注解POJO的映射 -->
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<ref bean="mappingJacksonHttpMessageConverter" /><!-- json转换器 -->
</list>
</property>
</bean>

<bean id="viewResolver" class="com.zhaochao.controller.JeeDevViewResolver">
<property name="defaultViewResolver" ref="jspViewResolver" />
<property name="viewResolverMap">
<map>
<entry>
<key>
<set>
<value>.vm</value>
</set>
</key>
<ref bean="velocityViewResolver" />
</entry>
<entry>
<key>
<set>
<value>jsp</value>
</set>
</key>
<ref bean="jspViewResolver" />
</entry>
</map>
</property>
</bean>

<bean id="beanNameViewResolver"
class="org.springframework.web.servlet.view.BeanNameViewResolver" />

<bean id="jspViewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<!--<property name="suffix" value=".jsp"/> -->
</bean>

<!-- Velocity ViewResolver Configuration -->
<bean id="velocityViewResolver"
class="org.springframework.web.servlet.view.velocity.VelocityViewResolver">
<property name="order" value="0" />
<property name="contentType" value="text/html;charset=UTF-8" />
<property name="requestContextAttribute" value="req" />
</bean>

<!-- Velocity Configuration -->
<bean id="velocityConfig"
class="org.springframework.web.servlet.view.velocity.VelocityConfigurer">
<property name="configLocation" value="/WEB-INF/velocity.properties" />
<property name="resourceLoaderPath" value="/WEB-INF/vm/" />
<property name="velocityProperties">
<props>
<prop key="input.encoding">UTF-8</prop>
<prop key="output.encoding">UTF-8</prop>
</props>
</property>
</bean>

</beans>

3.Controller控制器

package com.zhaochao.controller;

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

import com.zhaochao.bean.user.UserBean;
import com.zhaochao.service.user.UserService;

@Controller
@RequestMapping("/userAction")
public class UserController {
private UserService userService;
public UserService getUserService() {
return userService;
}
@Autowired
public void setUserService(UserService userService) {
this.userService = userService;
}

@RequestMapping(value = "/def")
public String def(HttpServletRequest request, ModelMap map) {
map.put("name", "hello world");
request.setAttribute("name", "hello wrod!");
List<UserBean> users=userService.getUserEntities();
map.put("name", "hello world");
map.put("users", users);
return "def";
}
@RequestMapping(value = "/jsp")
public String test1(HttpServletRequest request, ModelMap map) {
map.put("name", "hello world");
request.setAttribute("name", "hello wrod!");
List<UserBean> users=userService.getUserEntities();
map.put("name", "hello world");
map.put("users", users);
return "index.jsp";
}
@RequestMapping(value = "/vm")
public String test3(HttpServletRequest request, ModelMap map) {
List<UserBean> users=userService.getUserEntities();
map.put("name", "hello world");
map.put("users", users);
return "index.vm";
}

}

4.View层目录结构

5.效果

完整项目下载地址