java封装json工具类

这种工具类网上有很多，为什么我还要自己封装，就是为了一个字：用着“爽”！

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/**

• @author:作者Lelonta
• @version:1.0
• 创建时间：2017-4-12 下午10:27:50
• 类说明
  */
  public class MyJson {

/**
 * 返回成功数据
 * @param resObj
 * @return
 */
public static JSONObject returnSucc(Object resobj){
    Map<String, Object> obj = new HashMap<String, Object>();
    obj.put("code", "40000");
    //obj.put("info", "success");
    obj.put("resobj", resobj);
    
    JSONObject jsonObject = MakeJsonUtil.createJson(obj);
    return jsonObject;
}

/**
 * 返回成功数据 
 * 排除不想要的数据字段
 * @param resobj
 * @param excludes
 * @return
 */
public static JSONObject returnSuccAndExclude(Object resobj,String[] excludes){
    //定义一个map
    Map<String, Object> obj = new HashMap<String, Object>();
    obj.put("code", "40000");
    //obj.put("info", "success");
    obj.put("resobj", resobj);
    
    JSONObject jsonObject = MakeJsonUtil.createJsonExclude(obj, excludes);
    
    return jsonObject;
}

/**
 * 返回成功数据以及其他相加的数据 
 * 排除不想要的数据字段
 * @param resObj
 * @return
 */
public static JSONObject returnSuccForOtherAndExclude(Object resobj,Object other
        ,String[] excludes){
    
    Map<String, Object> obj = new HashMap<String, Object>();
    obj.put("code", "40000");
    //obj.put("info", "success");
    obj.put("resobj", resobj);
    obj.put("other", other);
    
    JSONObject jsonObject = MakeJsonUtil.createJsonExclude(obj, excludes); 
    
    return jsonObject;
}

/**
 * 返回成功数据以及其他想加的数据
 * @param resobj
 * @param other
 * @return
 */
public static JSONObject returnSuccForOther(Object resobj,Object other){
        
        Map<String, Object> obj = new HashMap<String, Object>();
        obj.put("code", "40000");
        //obj.put("info", "success");
        obj.put("resobj", resobj);
        obj.put("other", other);
        
        JSONObject jsonObject = MakeJsonUtil.createJson(obj);
        
        return jsonObject;
    }

/**
 * 返回错误结果
 * @param resObj
 * @return
 */
public static JSONObject returnFail(Object resobj){
    Map<String, Object> obj = new HashMap<String, Object>();
    obj.put("code", "40004");
    //obj.put("info", "success");
    obj.put("resobj", resobj);
    
    JSONObject jsonObject = MakeJsonUtil.createJson(obj);
    
    return jsonObject;
}

/**
 * 返回错误数据
 * 排除不想要的数据字段
 * @param resobj
 * @param excludes
 * @return
 */
public static JSONObject returnFailAndExclude(Object resobj,String[] excludes){
    Map<String, Object> obj = new HashMap<String, Object>();
    obj.put("code", "40004");
    //obj.put("info", "success");
    obj.put("resobj", resobj);
    
    JSONObject jsonObject = MakeJsonUtil.createJsonExclude(obj, excludes); 
    return jsonObject;
}

public static void main(String[] args) {
    Map<String, Object> obj = new HashMap<String, Object>();
    obj.put("code", "40000");
    //obj.put("info", "success");
    obj.put("resobj", "resobj");
    obj.put("other", "other");
    JsonConfig jsonConfig = new JsonConfig();  
    jsonConfig.setIgnoreDefaultExcludes(true);  //默认为false，即过滤默认的key  
    jsonConfig.setExcludes(new String[]{"other"});
    jsonConfig.registerJsonValueProcessor(Date.class, 
                            new JsonDateValueProcessor());
    JSONObject jsonObject = JSONObject.fromObject(obj,jsonConfig); 
    
    System.out.println(jsonObject);  
}

}

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继续封装一个工具类，被myjson引用

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/**

• @author 作者Lelonta:

• @version

• 创建时间：2017-4-14 下午9:45:43

• 类说明
  */
  public class MakeJsonUtil {

  //创建 jsonconfig对象
  private static JsonConfig jsonConfig = null;

/**
 * 返回jsonobject
 * @param obj
 * @return
 */
public static JSONObject createJson(Map<String, Object> obj) {
    
    jsonConfig = new JsonConfig();
    jsonConfig.registerJsonValueProcessor(Date.class, 
            new JsonDateValueProcessor());
    JSONObject jsonObject = JSONObject.fromObject(obj,jsonConfig);
    return jsonObject;
}

/**
 * 返回jsonobject,并且去除不想要的字段
 * @param obj
 * @param excludes
 * @return
 */
public static JSONObject createJsonExclude(Map<String, Object> obj,String[] excludes) {
    
    jsonConfig = new JsonConfig();
    jsonConfig.setExcludes(excludes);
    jsonConfig.registerJsonValueProcessor(Date.class, 
            new JsonDateValueProcessor());
    JSONObject jsonObject = JSONObject.fromObject(obj,jsonConfig); 
    return jsonObject;
}

}

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时间格式化工具类

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/**

• @author 作者Lelonta:

• @version

• 创建时间：2017-4-8 上午10:35:27

• 类说明
  */
  public class JsonDateValueProcessor implements JsonValueProcessor {
  private String format ="yyyy-MM-dd HH:mm:ss";

  public JsonDateValueProcessor() {
  super();
  }

  public JsonDateValueProcessor(String format) {
  super();
  this.format = format;
  }

  public Object processArrayValue(Object paramObject,
  JsonConfig paramJsonConfig) {
  return process(paramObject);
  }

  public Object processObjectValue(String paramString, Object paramObject,
  JsonConfig paramJsonConfig) {
  return process(paramObject);
  }

private Object process(Object value){
    if(value instanceof Date){  
        SimpleDateFormat sdf = new SimpleDateFormat(format,Locale.CHINA);  
        return sdf.format(value);
    }  
    return value == null ? "" : value.toString();  
}

}

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如果喜欢拿去用吧！！！