SpringMVC 多视图配置 jsonp

最近要在spring mvc 上实现 jsonp 所以就查找 spring 官方文档发现 org.springframework.web.servlet.view.ContentNegotiatingViewResolver 这个东西可以实现

但是在我写demo 的时候去出现了问题 google了半天也是没有什么结果。。。
可是无意间改动一个方法的返回值却成功了。。。。。

<?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:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="
        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
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">

	<!-- 默认扫描的包路径 -->
	<context:component-scan base-package="com.wzl.openapi"></context:component-scan>

	<context:annotation-config />

	<mvc:annotation-driven />

	<!-- 定义JSP视图解析器-->
	<bean id="jspViewResolver"
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/" />
		<property name="suffix" value=".jsp" />
		<property name="contentType" value="text/html;charset=UTF-8" />
		<property name="viewClass">
			<value>org.springframework.web.servlet.view.InternalResourceView
			</value>
		</property>
	</bean>

	<bean
		class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
		<property name="order" value="0" />
		<property name="favorParameter" value="true" />
		<property name="parameterName" value="format" />
		<property name="ignoreAcceptHeader" value="true" />
		<!-- true，开启扩展名支持，false关闭支持 -->
		<property name="favorPathExtension" value="true" />
		<property name="defaultContentType" value="application/json"></property>
		<property name="mediaTypes">
			<map>
				<entry key="json" value="application/json" />
				<entry key="jsonp" value="application/javascript" />
				<entry key="jsp" value="text/html"></entry>
			</map>
		</property>
		<property name="viewResolvers">
			<list>
				<bean class="org.springframework.web.servlet.view.BeanNameViewResolver">
					<property name="order" value="0"></property>
				</bean>
			</list>
		</property>
		<property name="defaultViews">
			<list>
				<bean
					class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" />
				<bean class="com.wzl.openapi.util.MappingJacksonJsonpView"></bean>

			</list>
		</property>
	</bean>

</beans>

没修改之前

	/**
	 * 获取验证码
	 * @param mobile
	 * @return
	 */
	@RequestMapping( value = "getCode", produces = "application/json;charset=UTF-8" )
	public  @ResponseBody Map<String, Object> getCode( Model model, String userMobile ) {
	Map<String, Object> map = new HashMap<String, Object>();
		try{
			Map<String, String> _m =  bpwm.getCode( userMobile );
			map.put("request", "200");
			map.put("data", _m);
		}catch (Exception e) {
			// TODO: handle exception
			map.put("request", e.getMessage());
			map.put("data", propes.getPropes().get( "getCode.error." + e.getMessage() ));
		}
		return map;
	}

修改之后

	/**
	 * 获取验证码
	 * @param mobile
	 * @return
	 */
	@RequestMapping( value = "getCode" )
	public String getCode( Model model, String userMobile ) {
		try{
			Map<String, String> _m =  bpwm.getCode( userMobile );
			model.addAttribute("request", "200");
			model.addAttribute("data", _m);
		}catch (Exception e) {
			// TODO: handle exception
			model.addAttribute("request", e.getMessage());
			model.addAttribute("data", propes.getPropes().get( "getCode.error." + e.getMessage() ));
		}
		return "servicesAPI";
	}

SpringMVC 多视图配置 jsonp

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