@RequestMapping(value = "/getTest", method = {RequestMethod.POST})
public @ResponseBody
CommonResponse getTest(@RequestBody TestForm form {
后台这样写，使用postman测试
请求会直接报400，
<!doctype html>
<html lang="en">
<head>
<title>HTTP Status 400 – Bad Request</title>
<style type="text/css">
h1 {
font-family: Tahoma, Arial, sans-serif;
color: white;
background-color: #525D76;
font-size: 22px;
}
h2 {
font-family: Tahoma, Arial, sans-serif;
color: white;
background-color: #525D76;
font-size: 16px;
}
h3 {
font-family: Tahoma, Arial, sans-serif;
color: white;
background-color: #525D76;
font-size: 14px;
}
body {
font-family: Tahoma, Arial, sans-serif;
color: black;
background-color: white;
}
b {
font-family: Tahoma, Arial, sans-serif;
color: white;
background-color: #525D76;
}
p {
font-family: Tahoma, Arial, sans-serif;
background: white;
color: black;
font-size: 12px;
}
a {
color: black;
}
a.name {
color: black;
}
.line {
height: 1px;
background-color: #525D76;
border: none;
}
</style>
</head>
<body>
<h1>HTTP Status 400 – Bad Request</h1>
<hr class="line" />
<p><b>Type</b> Status Report</p>
<p><b>Description</b> The server cannot or will not process the request due to something that is perceived to be a
client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).
</p>
<hr class="line" />
<h3>Apache Tomcat/8.5.42</h3>
</body>
</html>
如果后台改为
public CommonResponse getTest(@RequestBody JSONObject jsonObject) {
用JSONObject接收则没有问题，请各位大佬告知原因
你的前端参数后后边接受对象的参数名字有没有对应上
get请求接口接收一个对象参数时，不用加@RequestBody,直接这样就可以：
@RequestMapping(value = "/getTest", method = {RequestMethod.POST})
public CommonResponse getTest(TestForm form） {}
如果是post请求，需要加上 @RequestBody 注解。
看下这篇文章：https://blog.csdn.net/HXNLYW/article/details/89518579