springmvcjson数据处理

• Z时代
• 2024-01-10
• 分类：综合

@ResponseBody / @RequestBody ,可以将响应值转换成json / 将请求参数转换成json，Jackson可对属性进行json格式化处理，引入依赖

<dependency>
  <groupId>com.fasterxml.jackson.core</groupId>
  <artifactId>jackson-databind</artifactId>
  <version>2.10.2</version>
</dependency>

• pojo

/**
 * @JsonIgnore:属性忽略
 * @JsonIgnore:日期转换
 * @JsonInclude:属性排除
 */
@Data
@AllArgsConstructor
public class User {
    private Integer id;
    @JsonIgnore
    private String name;
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")
    private Date date;
    @JsonInclude(JsonInclude.Include.NON_EMPTY)
    private List<String> hobby;
}

• controller

@RestController
public class JsonController {
    @RequestMapping("/json/date")
    public User test1(){
        ArrayList<String> list = new ArrayList<>();
        User user = new User(1001, "张三", new Date(),list);
        return user; // 响应值：{"id":1001,"date":"2020-08-01 15:48:38"}
    }
    @RequestMapping(value = "/json/CN",produces = "text/html;charset=utf-8")
    public String test2(){
        return "如鱼得水";  // 响应值：如鱼得水
    }
}

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