小程序请求后端接口实例

小程序wxml页面button 按钮
<view> <button bindtap="change">点击</button> //change 为js函数名 </view> 小程序js页面函数 Page({ change: function(event){ wx.request({ url: 'http://localhost:80/services/login/username', //如果不设置method 则默认get请求地址
method: 'post', data: {       //可携带参数
},
      header: {
        'content-type': 'application/json' // 默认值
      },
  
      success: function(res) {
        console.log(res.data)  //res.data  为接口返回值
      },
    })
  }

    
})


springboot后端接口:
    
@RestController
@RequestMapping("/login")
public class loginController {

    @RequestMapping(value = "/username",method = RequestMethod.POST)
    public String login(HttpServletRequest request){
        System.out.println(request.getParameter("userName"));
        return "请求成功";
    }
}


//spring后端接口以及接收参数的方式
@Component @Scope("prototype") @Path("/medical") public class MedicalRecordAction { @POST @Path("/login") @Produces(value = MediaType.TEXT_PLAIN) public String login(@FormParam(value = "requestJson") String requestJson){ return medicalInsertService.login(requestJson); }
//小程序前端请求方式以及请求参数       wx.request({ url: app.globalData.webServiceUrl+'/medical/login', method: 'post', data: { requestJson:"{'accountid':\""+app.globalData.accountid+"\",}", }, header: {'content-type': 'application/x-www-form-urlencoded' }, success:function(res){ if(res.data.code == 0){ for (let index in res.data.responseData) { //获取userid并配置全局userid app.globalData.userid = res.data.responseData[index].userid } }else{ wx.showToast({ title: res.data.responseData, icon: "none", }) } } })