使用Jsonlib将对象转换成json格式数据

      对象转换成json，使用传统的Stringbutld方式，个人感觉比较麻烦，于是采用jsonlib将对象转换成json对象的方式。

      首先看看各种独享转换成Json对象后的格式：     

    Object 类型装换成Json   {"code":"hello","message":"json","object":{"age":10,"name":"zhangs","pass":"123"}}
    List 类型装换成Json        ["hello","java"]
    Map 类型装换成json       [{"hello":110,"tig":90,"java":122,"kilty":221}]
    Array 类型转换成json      [1,2,3,4,5,6,7]
    Lsit 存储对象装换        [{"autoIncrement":true,"columnuName":"id","dataTypeName":"VARCHAR","defaultValue":"10",
                                            "isNull":0,"key":true,"precision":5,"scale":2}]

  假设需要Json格式：     

{
    "columnInfo": [
        {
            "autoIncrement": true,
            "columnuName": "id",
            "dataTypeName": "VARCHAR",
            "defaultValue": "10",
            "isNull": 0,
            "key": true,
            "precision": 5,
            "scale": 2
        }
    ],
    "tableName": "t_res"
}

首先定义一个类封装需要的数据，在定义一个类用来封装前台需要的json数据：

数据对象：

public class JsonPo {
       
	private String columnuName;
	
	private String dataTypeName;
	
	private boolean isKey;
	
	private boolean isAutoIncrement;
	
	private Integer isNull;
	
	private Integer precision;
	
	private String defaultValue;
	
	private Integer scale;

	public String getColumnuName() {
		return columnuName;
	}

	public void setColumnuName(String columnuName) {
		this.columnuName = columnuName;
	}

	public String getDataTypeName() {
		return dataTypeName;
	}

	public void setDataTypeName(String dataTypeName) {
		this.dataTypeName = dataTypeName;
	}

	public boolean isKey() {
		return isKey;
	}

	public void setKey(boolean isKey) {
		this.isKey = isKey;
	}

	public boolean isAutoIncrement() {
		return isAutoIncrement;
	}

	public void setAutoIncrement(boolean isAutoIncrement) {
		this.isAutoIncrement = isAutoIncrement;
	}

	public Integer getIsNull() {
		return isNull;
	}

	public void setIsNull(Integer isNull) {
		this.isNull = isNull;
	}

	public Integer getPrecision() {
		return precision;
	}

	public void setPrecision(Integer precision) {
		this.precision = precision;
	}

	public String getDefaultValue() {
		return defaultValue;
	}

	public void setDefaultValue(String defaultValue) {
		this.defaultValue = defaultValue;
	}

	public Integer getScale() {
		return scale;
	}

	public void setScale(Integer scale) {
		this.scale = scale;
	}
	
	
	
}

显示对象：
public class JsonVo {

    private String tableName;

    private List<JsonPo> columnInfo;

    public String getTableName() {
        return tableName;
    }

    public void setTableName(String tableName) {
        this.tableName = tableName;
    }

    public List<JsonPo> getColumnInfo() {
        return columnInfo;
    }

    public void setColumnInfo(List<JsonPo> columnInfo) {
        this.columnInfo = columnInfo;
    }    

}

实现：

public class Json_06 {
       
	 public static void main(String[] args) {
		    List<JsonPo> list = new ArrayList<JsonPo>();
		    JsonPo jp = new JsonPo();
		    jp.setColumnuName("id");
			jp.setDataTypeName("VARCHAR");
			jp.setKey(true);
			jp.setAutoIncrement(true);
			jp.setIsNull(0);
			jp.setPrecision(5);
			jp.setDefaultValue("10");
			jp.setScale(2);
		    list.add(jp);
		    
		    JSONArray jsonArray = JSONArray.fromObject(list);
		    System.out.println(jsonArray.toString());
	}
}

自己也不知道好不好用。。。。。。。。。。。。。。。不喜勿喷。。。。。。。