415 Unsupported Media Type

最新推荐文章于 2024-07-23 10:41:25 发布

page_qiu

最新推荐文章于 2024-07-23 10:41:25 发布

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文章标签： spring json

本文链接：https://blog.youkuaiyun.com/page_qiu/article/details/51260407

本文详细记录了解决Spring MVC框架中使用JSON请求时遇到的问题，包括配置*-servlet.xml文件，设置Content-Type为application/json，并调整curl命令的正确用法。

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蛋疼这个错误搞了一上午，终于解决：

1、*-servlet.xml文件加：

<mvc:annotation-driven />

2、请求报文头加：

Content-Type: application/json

用火狐的restful插件调试成功，但是用mac自带的curl工具始终失败郁闷

curl -H "Content-Type: application/json" -X POST -data '{"usname":"pageqiu"}' http://127.0.0.1:8080/ffan_train/testJson.do

errinfo：

curl: (6) Could not resolve host: "usname"

先把正确的贴上来：

1、

*-servlet.xml文件

<?xmlversion="1.0"encoding="UTF-8"?>

<beansxmlns="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-3.0.xsd">

<mvc:annotation-driven/>

<context:component-scanbase-package="com.wanda.ffan.travel.train"/>

<beanid="jacksonMessageConverter"class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">

<propertyname="supportedMediaTypes">

<list>

<value>text/plain;charset=UTF-8</value>

</list>

</property>

</bean>

<beanclass="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">

<propertyname="messageConverters">

<list>

<refbean="jacksonMessageConverter"/>

</list>

</property>

</bean>

<beanid="defaultHandlerMapping"class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">

<propertyname="defaultHandler">

<beanclass="org.springframework.web.servlet.mvc.UrlFilenameViewController"></bean>

</property>

</bean>

<beanid="viewResolver"class="org.springframework.web.servlet.view.InternalResourceViewResolver">

<propertyname="viewClass"value="org.springframework.web.servlet.view.InternalResourceView"/>

<propertyname="prefix"value="/WEB-INF/jsp/"/>

<propertyname="suffix"value=".jsp"/>

</bean>

</beans>

2、java

@RequestMapping(method=RequestMethod.POST,value="/testJson.do",consumes ="application/json")

public @ResponseBody String testJSON(@RequestBody DemoVovo){

log.error("***testJson begin****");

//DemoVo vo = (DemoVo) JSON.parse(body);

log.error(vo.getUsname());

log.error("*****testJson end****");

return "success";

}

用curl请求报错的原因也找到了：

curl -H "Content-Type: application/json" -X POST --data '{"usname":"pageqiu"}' http://127.0.0.1:8080/ffan_train/testJson.do

data前是两个-，开发容易吗？