springboot @RequestBody 接收字符串
- springboot 2.1.1.RELEASE
@RequestBody 接收字符串
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@RequestMapping (method = {RequestMethod.POST}) public ResultEntity form1( @RequestBody String requestBody) throws UnsupportedEncodingException { logger.info( "================ request body ================" );\ logger.info( "request body is : {}" , requestBody); } |
向接口传送 application/json 格式的数据
客户端调用代码如下:
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$.ajax({ url: 'http://localhost/api/spd' , data: JSON.stringify({name: 'zhangsan' , age: 18}), type: 'POST' , contentType: 'application/json' , success: function (result){ console.log(result); }, error: function (error){ console.log(error); } }); |
服务端执行结果:
00:11:55.972 [http-nio-8020-exec-5] INFO c.c.api.SpdApi - [form1,45] - request body is : {"name":"zhangsan","age":18}
向接口传送 text/plain 格式的数据
客户端调用代码如下:
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$.ajax({ url: 'http://localhost/api/spd' , data: 'this is a message' , type: 'POST' , contentType: 'text/plain' , success: function (result){ console.log(result); }, error: function (error){ console.log(error); } }); |
服务端执行结果:
23:46:04.953 [http-nio-8020-exec-1] INFO c.c.api.SpdApi - [form1,45] - request body is : 'this is a message'
替代 @RequestBody 的办法
如果不想用 @RequestBody ,可以使用下面的方法:
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protected String getRequestBody(HttpServletRequest request) { try { BufferedReader reader = request.getReader(); char [] buf = new char [ 512 ]; int len = 0 ; StringBuffer contentBuffer = new StringBuffer(); while ((len = reader.read(buf)) != - 1 ) { contentBuffer.append(buf, 0 , len); } return contentBuffer.toString(); } catch (IOException e) { e.printStackTrace(); } return "null" ; } |
@RequestBody接收前端传来的json值为空
这个真的很脑抽。。。
我忘了在函数接收处写@RequestBody,至于其他博主说需要在BO包中加@JsonProperty(value = "xxx"),
或者什么驼峰命名法,也许是版本原因,没有这个必要,emmm,检查自己的函数接收参数叭
以上为个人经验,希望能给大家一个参考,也希望大家多多支持服务器之家。
原文链接:https://sayyy.blog.csdn.net/article/details/117457645