axios 傳遞類到后臺(tái)springmvc controller如何獲?。?/h1>

//添加老師
        saveTeacher(){
            this.$refs['teacherRef'].validate((valid) => {
                    if (valid) {
                        this.$post('http://localhost:9090/teacher/save',{
                            teacher:this.teacher,
                            labels:this.label.list
                        })
                        .then(res=>{
                            console.log('res=',res)
                        })
                        .catch(err=>{

                        })
                    } else {
                        this.$Message.error('請(qǐng)輸入完整!');
                    }
                })            
        }
    }

@RequestMapping(value = "/save", method = RequestMethod.POST)
    public String save(@ModelAttribute Teacher teacher){
        AjaxResult result = new AjaxResult();
        System.out.println("==============teacher===========");
        System.out.println(teacher.toString());

//        System.out.println("==============labels===========");
//        System.out.println(labels);
        result.setSuccess(true);
        return JSON.toJSONString(result);
    }

從圖中可以看出全部為空，請(qǐng)問如何解決，求教