SpringMVC----FastJson

接上一篇–Jackson：Json处理
对于Json的序列化，FastJson的功能比Jackson要好，如果不想使用Jackson，则也可以按照其他的Json处理方案如：FastJson

        
        
            com.alibaba
            fastjson
            1.2.54
        

在mvc.xml文件的注解驱动标签中加一个子标签

    
    
        
        
            
                
                
                    
                        application/json
                    
                
            
        
    

public class User2 {
    @JSONField(serialize = false)
    //serialize:当前属性不进入json序列化
    private Integer id;
    @JSONField(name = "NAME",serialzeFeatures = SerializerFeature.WriteNullStringAsEmpty)
    //name:属性改名；serialzeFeatures:如果name属性值为空，也输出，输出""，空字符串
    private String name;
    @JSONField(serialzeFeatures = SerializerFeature.WriteMapNullValue)
    //serialzeFeatures:如果city属性的值为空，也输出，输出一个null
    private String city;
   @JSONField(format = "yyyy/MM/dd")
    //serializeUsing:日期的格式化
    private Date birth;
    @JSONField(serializeUsing = MySerializer2.class)
    private Double salary;

	//get set 构造方法
}

import com.alibaba.fastjson.serializer.JSONSerializer;
import com.alibaba.fastjson.serializer.ObjectSerializer;
import java.io.IOException;
import java.lang.reflect.Type;

public class MySerializer2 implements ObjectSerializer {
    @Override
    public void write(JSONSerializer jsonSerializer, Object o, Object o1, Type type, int i) throws IOException {
        Double value = (Double) o;//o： salary属性值
        String text = value+"元";
        jsonSerializer.write(text);
    }
}

• Controller

@RequestMapping("/json")
@RestController
public class JSONController {
    @RequestMapping("/test3")
    public User2 test3(){
        User2 user2 = new User2(1,null,null,new Date(),22222.38);
        System.out.println(user2);
        return user2;
    }
}