备忘录之 -springmvc view

最新推荐文章于 2025-05-03 10:31:57 发布

iteye_19263

最新推荐文章于 2025-05-03 10:31:57 发布

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分类专栏： springmvc 文章标签： json java

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本文介绍了两种在SpringMVC中返回JSON数据的方法。一种是通过配置ContentNegotiatingViewResolver来实现默认返回JSON；另一种是在控制器方法上使用@ResponseBody注解直接返回JSON对象。

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http://www.cnblogs.com/crazy-fox/archive/2012/02/18/2357675.html

sprngmvc 返回json：
方法一：springmvc设置默认返回json


<bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
        <property name="contentNegotiationManager">
            <bean class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
                <property name="ignoreAcceptHeader" value="true"/>
                <property name="defaultContentType" value="application/json"/>
                <property name="mediaTypes">
                    <map>
                        <entry key="page" value="text/html"/>
                        <entry key="json" value="application/json"/>
                    </map>
                </property>
            </bean>
        </property>
		<property name="viewResolvers">
			<list>
				<bean class="org.springframework.web.servlet.view.BeanNameViewResolver" />
				<bean
					class="org.springframework.web.servlet.view.InternalResourceViewResolver">
					<property name="prefix" value="/jsp/" />
					<property name="suffix" value=".jsp" />
				</bean>
			</list>
		</property>
		<property name="defaultViews">
			<list>
				<bean
					class="org.springframework.web.servlet.view.json.MappingJackson2JsonView" />
			</list>
		</property>
	</bean>


调用：
http://127.0.0.1:8080/Spring3.2/user/TP18001135
@RequestMapping(value="/{userid}")
	public User viewUser(@PathVariable("userid")String userid)
			throws Exception {
		User user = getUserService().view(userid);
		return user;
	}
http://127.0.0.1:8080/Spring3.2/user/TP18001135
@RequestMapping(value="/{userid}")
	public User viewUser(@PathVariable("userid")String userid)
			throws Exception {
		User user = getUserService().view(userid);
		return user;
	}


结果：
{
user: {
pkid: "TP18001135",
name: "TP18001135",
email: "309232308@qq.com",
spAcccount: "TP18001135"
}
}

方法2，使用 @ResponseBody返回json：
配置文件：


<bean id="viewResolver"
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="viewClass"
			value="org.springframework.web.servlet.view.JstlView" />
		<property name="prefix" value="/jsp/" />
		<property name="suffix" value=".jsp"></property>


控制器：
@RequestMapping(value = "/json/{userid}", method = RequestMethod.GET)
@ResponseBody
public User getUserJson(@PathVariable("userid")String userid) throws Exception {
		User user = getUserService().view(userid);
		return user;
	}


返回结果：

{
pkid: "TP18001135",
name: "TP18001135",
email: "309232308@qq.com",
spAcccount: "TP18001135"
}