Spring Boot请求方式GET、POST、PUT 、DELETE

    // 请求方式，同时支持GET和POST
    @RequestMapping(value = "/queryStudentById", method = {RequestMethod.GET, RequestMethod.POST})
    public Object queryStudentById(Integer id) {
        Student student = new Student();
        student.setId(id);
        return student;
    }

    // @RequestMapping(value = "/queryStudentById2", method = RequestMethod.GET)
    // 等价于下面的,只接受GET请求，请求方式不对会报405, 常用于查询操作
    @GetMapping(value = "/queryStudentById2")
    public Object queryStudentById2() {
        return "ONLY GET";
    }

    // @RequestMapping(value = "/insert", method = RequestMethod.POST)
    // 等价于下面的,只接受POST请求，请求方式不对会报405, 常用于插入操作
    @PostMapping(value = "/insert")
    public Object insert() {
        return "insert success";
    }

    // @RequestMapping(value = "/update", method = RequestMethod.PUT)
    // 等价于下面的,只接受PUT请求，请求方式不对会报405, 常用于更新操作
    @PutMapping(value = "/update")
    public Object update() {
        return "update success";
    }

    // @RequestMapping(value = "/delete", method = RequestMethod.DELETE)
    // 等价于下面的,只接受DELETE请求，请求方式不对会报405, 常用于删除操作
    @DeleteMapping(value = "/delete")
    public Object delete() {
        return "delete success";
    }