如果使用PUT，SpringMVC无法识别请求主体参数 [英] SpringMVC is not recognizing request body parameters if using PUT

问题描述

也许这应该行不通，但至少我想了解为什么会这样.我在PUT主体中传递了一个简单的val = somevalue，但是spring似乎发回了400 Bad Request，因为它似乎无法识别val参数.

Maybe this is supposed to not work, but at least I'd like to understand why then. I am passing a simple val=somevalue in the PUT body but spring sends back a 400 Bad Request as it does not seem to recognise the val parameter.

类似的请求适用于POST.可能是 SpringMVC 无法识别PUT请求主体作为参数源吗?

Similar request works with POST. Could it be SpringMVC is not recognizing the PUT request body as source for parameters?

Content=-Type均已正确设置为application/x-www-form-urlencoded.

Content=-Type is set correctly to application/x-www-form-urlencoded in both cases.

spring拒绝调用的方法是这样的:

The method that spring refuses to call is this:

@RequestMapping(value = "config/{key}", method = RequestMethod.PUT)
@ResponseBody
public void configUpdateCreate(final Model model, @PathVariable final String key, @RequestParam final String val,
        final HttpServletResponse response) throws IOException
{
    //...
}

为了完整起见，这是jquery ajax调用.我看不出有什么问题.客户端是Firefox 4或Chrome，两者显示的结果相同.

For completeness, here is the jquery ajax call. I cannot see anything wrong with that. Client is Firefox 4 or Chrome, both show the same result.

$.ajax({
         url:url,
         type:'PUT',
         data:'val=' + encodeURIComponent(configValue),
         success: function(data) {...}
       });      

有什么想法吗?

推荐答案

目前我还不知道要解决的方法，但是这里的错误报告是无法修复".我一直在争取同一个问题

I don't know of a work around at this point, but here is the bug report that is a "Won't Fix." I've been fighting the same issue

https://jira.springsource.org/browse/SPR-7414

更新:这是我的解决方法.我正在使用RequestBody注释.然后使用MultiValueMap.

Update: Here is my fix. I'm using RequestBody annotation. Then using MultiValueMap.

http://static.springsource.org /spring/docs/3.0.5.RELEASE/reference/mvc.html#mvc-ann-requestbody

@RequestMapping(value = "/{tc}", method = RequestMethod.PUT) 
public void update(@PathVariable("tc") final String tc, 
@RequestBody MultiValueMap<String,String> body, HttpServletResponse response) {

    String name = body.getFirst("name");
// more code
}

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