还是有问题，不过现在后端可以正常收到username和password

src/services/authenticationService.js

@@ -2,11 +2,19 @@ import axios from "axios";
 
 export default {
     login(username, password, apiUrl="http://localhost:8080"){
-        return axios.get(`/checkLogin`, {username:username, password:password})
+        const url = `${apiUrl}/users/checkLogin`
+        const data = {
+            username: username,
+            password: password
+        };
+        return axios.post(url, data)
             .then(response => {
-                alert("hahaha");
+                alert(">login方法中<");
-                // 处理登录成功的逻辑
+                alert(response.data);
                 return response.data;
             });
+    },
+    register(){
+        //跳转逻辑
     }
 }

src/views/authentication.vue

@@ -7,6 +7,7 @@
   <el-input v-model="username" placeholder="pls enter the username"></el-input>
   <el-input v-model="password" placeholder="pls enter the password"></el-input>
   <el-button type="success" @click="handleLogin">LOGIN</el-button>
+  <el-button type="success" @click="handleRegister">REGISTER</el-button>
 </template>
 
 <script>
@@ -22,7 +23,12 @@
      },methods:{
        handleLogin(){
          authenticationService.login(this.username,this.password).then(res=>{
-            alert(res);
+            alert("login方法调用完毕");
+            alert(res.data);
+         });
+       },handleRegister(){
+         authenticationService.register(this.username,this.password).then(res=>{
+           alert(res);
          });
        }
      }