Java in JSON processing tool class use details

This article example for everyone to share JSON processing tool class specific code, for your reference, the specific content is as follows

import java.io.IOException; 
import java.util.Date; 
import java.util.HashMap; 
import java.util.Map; 
 
import javax.servlet.http.HttpServletResponse; 
 
import com.alibaba.fastjson.JSON; 
import com.alibaba.fastjson.serializer.SerializerFeature; 
 
/** 
 * 
 * @author humf 
 * 
 */ 
public class FastJsonUtil { 
   
  /** 
   *  Converts the object to json string  
   * @param object 
   * @return 
   */ 
  public static String toJSONString(Object object){ 
    //DisableCircularReferenceDetect To disable circular reference detection  
    return JSON.toJSONString(object,SerializerFeature.DisableCircularReferenceDetect); 
  } 
   
  // The output json 
  public static void write_json(HttpServletResponse response,String jsonString){ 
    response.setContentType("application/json;utf-8"); 
    response.setCharacterEncoding("UTF-8"); 
    try { 
      response.getWriter().print(jsonString); 
    } catch (IOException e) { 
      e.printStackTrace(); 
    }   
  } 
   
  /** 
   * ajax CALLBACK after submission json string  
   * @return 
   */ 
  public static String ajaxResult(boolean success,String message) 
  { 
    Map map=new HashMap(); 
    map.put("success", success);// The success of  
    map.put("message", message);// A text message  
    String json= JSON.toJSONString(map);     
    return json; 
  } 
   
 
  /** 
   * JSON Strings are automatically prefixed  
   * @param json  The original json string  
   * @param prefix  The prefix  
   * @return  A prefixed string  
   */ 
 
  public static String JsonFormatterAddPrefix(String json,String prefix,Map<String,Object> newmap) 
  { 
    if(newmap == null){ 
      newmap = new HashMap(); 
    } 
    Map<String,Object> map = (Map) JSON.parse(json); 
 
    for(String key:map.keySet()) 
    { 
      Object object=map.get(key); 
      if(isEntity(object)){ 
        String jsonString = JSON.toJSONString(object); 
        JsonFormatterAddPrefix(jsonString,prefix+key+".",newmap); 
         
      }else{ 
        newmap.put(prefix+key, object); 
      } 
       
    } 
    return JSON.toJSONString(newmap);     
  } 
  /** 
   *  Determine whether an object is an entity  
   * @param object 
   * @return 
   */ 
  private static boolean isEntity(Object object) 
  { 
    if(object instanceof String ) 
    { 
      return false; 
    } 
    if(object instanceof Integer ) 
    { 
      return false; 
    } 
    if(object instanceof Long ) 
    { 
      return false; 
    } 
    if(object instanceof java.math.BigDecimal ) 
    { 
      return false; 
    } 
    if(object instanceof Date ) 
    { 
      return false; 
    } 
    if(object instanceof java.util.Collection ) 
    { 
      return false; 
    } 
    return true; 
     
  } 
}