后端 @Data public class PostBean { private String str; private Boolean bool1; private Integer int1; } @PostMapping("/postTest") public String postTest(@RequestBody PostBean postBean){ System.out.println("====postTest()==begin=" +postBean); System.out.println("====postTest()==end="); return "post test success! "+postBean.getStr(); } 小程序 postTest() { var that = this; wx.request({ url: 'http://127.0.0.1:8080/test/postTest', //仅为示例,并非真实的接口地址 method: "POST", data: { "str": "restfulToolkitX", "bool1": true, "int1": 1 }, header: { 'content-type': 'application/json' // 默认值 }, success (res) { console.log(res.data) }, fail(res) { console.log(res.erMsg) } })