工作中需要把浏览器返回的json数据转成公司服务器能够识别的xml文件,这里是用到了hutool工具,以及fastjson进行解析

1.浏览量返回的JSON文件

{
  "id": "13",
  "name": "OpenDataV",
  "canvasData": [
    {
      "id": "7e181c23e15e4598be25c83566c67ec3",
      "component": "Image",
      "name": "图片",
      "propValue": {},
      "style": {
        "left": 330,
        "top": 220,
        "width": 200,
        "height": 200,
        "rotate": 0,
        "background": {
          "backgroundColor": "#14c9c9"
        },
        "backgroundColor": "#14c9c9"
      },
      "dataIntegrationMode": "SELF"
    },
    {
      "id": "9140a3cc09a24382a5e8ebd43524f9a0",
      "component": "DateText",
      "name": "时间文本",
      "propValue": {
        "base": {
          "format": "YYYY-MM-DD HH:mm:ss"
        }
      },
      "style": {
        "left": 362,
        "top": 481,
        "width": 200,
        "height": 50,
        "rotate": 0,
        "color": "skyblue",
        "fontSize": 20,
        "fontWeight": 200,
        "fontFamily": "Arial"
      },
      "dataIntegrationMode": "SELF"
    },
    {
      "id": "de6b19ec73ca44718ea9803e25c839e2",
      "component": "ScrollTable",
      "name": "滚动表格",
      "propValue": {
        "header": {
          "header": [
            "姓名",
            "年龄",
            "性别"
          ],
          "headerBGC": "#00BAFF",
          "headerHeight": 35,
          "index": false,
          "indexHeader": "#"
        },
        "rows": {
          "data": {
            "height": 30,
            "oddRowBGC": "#003B51",
            "evenRowBGC": "#0A2732"
          }
        }
      },
      "style": {
        "left": 461,
        "top": 629,
        "width": 400,
        "height": 100,
        "rotate": 0
      },
      "dataIntegrationMode": "UNIVERSAL",
      "data": {
        "type": "DEMO",
        "otherConfig": {}
      }
    }
  ],
  "canvasStyle": {
    "width": 1707,
    "height": 1067,
    "background": {
      "backgroundColor": "#272e3b"
    }
  }
}

浏览器返回的json文件比较复杂嵌套多个对象以及数组

定义主对象

@Data
@AllArgsConstructor
@NoArgsConstructor
@XmlRootElement(name = "Xml")
@XmlAccessorType(XmlAccessType.PROPERTY)
public class Canvas {

    private String id;

    private String name;
   // @XmlTransient
  // @XmlAttribute(name = "canvasStyle")
    private CanvasStyle canvasStyle;

    private String width;

    private String height;


    public List<CanvasData> getCanvasData() {
        return canvasData;
    }
# 	这里是组件的类型不确定这里进行类型匹配
    @XmlElementRefs({@XmlElementRef(name = "text", type = StaticText.class, required = true),
//                  @XmlElementRef(name = "input", type = Button.class,required = true),
//            @XmlElementRef(name = "button", type = Button.class)
    })
    public void setCanvasData(List<CanvasData> canvasData) {
        this.canvasData = canvasData;
    }


        @JSONField(name = "canvasData")
    private List<CanvasData> canvasData;
     //@XmlElementRef(type = CanvasStyle.class)


    public String getWidth() {
        return width;
    }
    @XmlAttribute(name ="width" )
    public void setWidth(String width) {
        this.width =this.canvasStyle.getWidth() ;
    }

    public String getHeight() {
        return height;
    }
    @XmlAttribute(name ="height" )
    public void setHeight(String height) {
        this.height = this.canvasStyle.getHeight();
    }

    public String getId() {
        return id;
    }
    @XmlAttribute(name = "id")
    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }@XmlAttribute(name = "name")
    public void setName(String name) {
        this.name = name;
    }

    public CanvasStyle getCanvasStyle() {
        return canvasStyle;
    }

    public void setCanvasStyle(CanvasStyle canvasStyle) {
        this.canvasStyle = canvasStyle;
    }
}

公共组件类型定义

我把抽象类改成了类文件,因为抽象fastjson解析为null,为hutool的解析我试过无法解析直接报错,也有可能我的使用方式不正确

@Data
@XmlRootElement
public  class CanvasData  implements Serializable {
    private String id;
    private String component;

    private String name;

    private PropValue proValue;

    private Style style;

    private String dataIntegrationMode;

}

样式定义

@Data
@AllArgsConstructor
@NoArgsConstructor
@XmlAccessorType(XmlAccessType.FIELD)
public class CanvasStyle {
    @XmlAttribute
   private String width;
    @XmlAttribute
   private String height;
    //@XmlElementRef(type = BackGround.class)
//   private BackGround background;

}

自定义组件定义

这里列举一个,这个需要在主类型中类型匹配中添加一项

@Data
@XmlRootElement(name = "StaticText")
public class StaticText  extends CanvasData{
}

解析测试

public class JsonTest {
    @Test
    void JsonTest(){
        String url = "D:\\code2\\ParseJsonToXML\\src\\main\\resources" + File.separator + "hyway.xml";
        JSON json = JSONUtil.readJSON(new File("D:\\code2\\ParseJsonToXML\\src\\main\\resources\\test.json"), Charset.defaultCharset());
        String s = json.toString();
        JSONObject entries = JSONUtil.parseObj(json);
        Canvas canvas = com.alibaba.fastjson.JSON.parseObject(String.valueOf(json), Canvas.class);


        System.out.println(canvas);

        XmlUtil.uploadByBeanToXml(canvas, Canvas.class,"utf-8",url);
    }
}

字段排序

使用@JSONField或者使用@JSONType注解

@JSONType(orders = {"top","left","width","height","rotate","color","fontSize","fontWeight","fontFamily"})

或者是

package com.hyway.domain;


import com.alibaba.fastjson2.annotation.JSONField;
import lombok.Data;

@Data

public class JsonStyle {
  @JSONField(ordinal = 1)
  private Integer  left;
  @JSONField(ordinal = 2)
  private Integer  top;
  @JSONField(ordinal = 3)
  private Integer  width;
  @JSONField(ordinal = 4)
  private Integer  height;
  @JSONField(ordinal = 5)
  private Integer  rotate;
  @JSONField(ordinal = 6)
  private BackGround background;
  @JSONField(ordinal = 7)
  private String  color;
  @JSONField(ordinal = 8)
  private Integer  fontSize ;
  @JSONField(ordinal = 9)
  private Integer  fontWeight;
  @JSONField(ordinal = 10)
  private String  fontFamily;