springboot 参数传递（json数据）
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相关注解
@RequestBody
@Target({ElementType.PARAMETER})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface RequestBody {
boolean required() default true;
}
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示例
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前端页面
<script language="JavaScript" src="/jquery/jquery-3.4.1.min.js"></script>
<script>
$(function () {
$("#button").click(function () {
const data = {
name: $("#name").val(),
age: $("#age").val()
};
$.post({
url: "./hello4",
contentType: "application/json",
data: JSON.stringify(data),
success: function () {
}
})
})
})
</script>
<body>
<form th:align="center">
name: <input id="name" name="name"><br>
age: <input id="age" name="age"><br>
<button id="button">提交</button>
</form>
</body>
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controller 层
HelloController
@RestController
public class HelloController {
@RequestMapping("/hello4")
public String hello4(@RequestBody Person person){
System.out.println(person);
return person.toString();
}
}
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使用测试
单击button，控制台输出
Person(name=瓜田李下, age=20)
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