json - 415 Spring 3.2 不支持的媒体类型

Question

我正在尝试使用 PUT 将数据插入和/或更新到数据库中方法通过 JSON 使用 jQuery 1.6，(Jackson 2.1.1 和 Spring 3.2.0 )。

JS代码如下。

 var itemsArray=[];
 var id;

function insertOrUpdate()
{
    var i=0;

    $('input[name="txtCharge[]"]').each(function()
    {
        isNaN($(this).val())||$(this).val()==''?itemsArray[i][2]='':itemsArray[i][2]=$(this).val();
        i++;
    });                

    $.ajax({
        headers: { 
            'Accept': 'application/json',
            'Content-Type': 'application/json' 
        },
        datatype:"json",
        type: "PUT",
        url: "/wagafashion/ajax/InsertZoneCharge.htm",
        data: "items=" + JSON.stringify(itemsArray)+"&zoneId="+id+"&t="+new Date().getTime(),
        success: function(response)
        {
            alert(response);
        },
        error: function(e)
        {
            alert('Error: ' + e);
        }
    });
}

与 URL 映射的 Spring Controller 内部的方法如下。

@RequestMapping(value=("ajax/InsertZoneCharge"), method=RequestMethod.PUT, produces=MediaType.APPLICATION_JSON_VALUE)
public @ResponseBody String insertZoneCharge(@RequestBody final MultiValueMap<String, String > data, final HttpServletResponse response, HttpServletRequest request)
{
    String message="";
    try
    {
        Map<String, String> params = data.toSingleValueMap();
        if(params.get("zoneId")==null||params.get("zoneId").equals("")||params.get("items")==null||params.get("items").equals(""))
        {
            response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
        }
        else
        {
            message=zoneChargeService.insertZoneCharge(params.get("zoneId"), params.get("items"));
        }
    }
    catch (IOException ex)
    {
        message="An error occured. Data can not be saved.";
        Logger.getLogger(ZoneCharge.class.getName()).log(Level.SEVERE, null, ex);
    }

    return message;
}

服务器响应问题暗示，

415 Unsupported Media Type

header 信息如下所示。

Request URL:http://localhost:8080/wagafashion/ajax/InsertZoneCharge.htm
Request Method:PUT
Status Code:415 Unsupported Media Type
Request Headersview source
Accept:application/json
Accept-Charset:ISO-8859-1,utf-8;q=0.7,*;q=0.3
Accept-Encoding:gzip,deflate,sdch
Accept-Language:en-US,en;q=0.8
Connection:keep-alive
Content-Length:352
Content-Type:application/json
Cookie:JSESSIONID=72AAFCC832C29D14FFA937D00D428A81
Host:localhost:8080
Origin:http://localhost:8080
Referer:http://localhost:8080/wagafashion/admin_side/ZoneCharge.htm
User-Agent:Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.56 Safari/537.17
X-Requested-With:XMLHttpRequest
Request Payload
items=[[1,10,"12.35"],[2,10.5,"16.00"],[3,11,"20.00"],[4,11.5,"30.00"],[5,12,"40.00"],[6,12.5,"50.00"],[7,13,"60.00"],[8,13.5,"70.00"],[9,14,""],[10,14.5,""],[11,15,""],[12,15.5,""],[13,16,""],[14,16.5,""],[15,17,""],[16,17.5,""],[17,18,""],[18,18.5,""],[19,19,""],[20,19.5,""],[24,20,""],[25,20.5,""],[26,21,""],[41,21.5,""]]&zoneId=45&t=1359485680332
Response Headersview source
Content-Length:1048
Content-Type:text/html;charset=utf-8
Date:Tue, 29 Jan 2013 18:54:40 GMT
Server:Apache-Coyote/1.1

整个 dispatcher-servlet.xml文件如下。

    <?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:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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-3.2.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
       http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">


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

    <mvc:annotation-driven content-negotiation-manager="contentNegotiationManager" >
        <mvc:message-converters register-defaults="false">
        <bean id="jacksonMessageConverter"
              p:supportedMediaTypes="application/json"
              class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
    </mvc:message-converters>
    </mvc:annotation-driven>

    <bean id="contentNegotiationManager" class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
        <property name="favorPathExtension" value="false" />
        <property name="favorParameter" value="false" />
        <property name="ignoreAcceptHeader" value="false" />
        <property name="mediaTypes" >
            <value>
                atom=application/atom+xml
                html=text/html
                json=application/json
                *=*/*
            </value>
        </property>                    
    </bean>


    <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>
    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
                <prop key="index.htm">indexController</prop>
            </props>
        </property>
    </bean>

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

    <bean name="indexController"
          class="org.springframework.web.servlet.mvc.ParameterizableViewController"
          p:viewName="index" />
</beans>

当我删除 @RequestBody final MultiValueMap<String, String > data 时它起作用, 一个方法参数，只需使用 @PathVariable接受请求参数。

Answer 1

浏览器发送的内容类型，Content-Type: application/json , 似乎不匹配 @RequestBody final MultiValueMap<String, String > data .

任何一个:

发送 application/x-www-form-urlencoded (在这种情况下，您可以更轻松地使用 HttpPutFormContentFilter 代替)。

或者:将其更改为类似 @RequestBody final MyDTO data 的内容如 JQuery, Spring MVC @RequestBody and JSON - making it work together 中所述.