103. java參數校驗

1.效果

 

2.代碼

2.1 引入jar

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-validator</artifactId>
    <version>5.4.1.Final</version>
</dependency>

實體類：

 

controller層

package cn.ma.daylife.controller;

import cn.ma.daylife.pojo.ValidateVo;
import com.alibaba.fastjson.JSON;
import org.springframework.validation.BindingResult;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.HashMap;
import java.util.Map;

@RestController
public class ValidateController {
    /**
     * http://localhost:8081/testValidate
     *
     * @param validateVo
     * @return
     */
    @RequestMapping("/testValidate")
    public String testValidate(@RequestBody @Validated ValidateVo validateVo, BindingResult bindingResult) {
        Map<Object, Object> res = new HashMap<>();
        if (bindingResult.hasErrors()) {
            res.put("status", 400);
            res.put("msg", bindingResult.getFieldError().getDefaultMessage());
        } else {
            res.put("status", 200);
            res.put("msg", "ok");
            res.put("data", validateVo);
        }

        return JSON.toJSONString(res);

    }
}