java map转化为json java将map直接转成string

一个简单的Map与String的转换方法,比较实用的一段java代码

username'chenziwen^password'1234的字符串

[java] view plain copy print ?

1. /**
2.  * 方法名称:transMapToString
3.  * 传入参数:map
4.  * 返回值:String 形如 username'chenziwen^password'1234
5. */
6. public static
7.   java.util.Map.Entry entry;  
8. new
9. for(Iterator iterator = map.entrySet().iterator(); iterator.hasNext();)  
10.   {  
11.     entry = (java.util.Map.Entry)iterator.next();  
12. "'" ).append(null==entry.getValue()?"":  
13. "^" : "");  
14.   }  
15. return
16. }

/**
 * 方法名称:transMapToString
 * 传入参数:map
 * 返回值:String 形如 username'chenziwen^password'1234
*/
public static String transMapToString(Map map){
  java.util.Map.Entry entry;
  StringBuffer sb = new StringBuffer();
  for(Iterator iterator = map.entrySet().iterator(); iterator.hasNext();)
  {
    entry = (java.util.Map.Entry)iterator.next();
      sb.append(entry.getKey().toString()).append( "'" ).append(null==entry.getValue()?"":
      entry.getValue().toString()).append (iterator.hasNext() ? "^" : "");
  }
  return sb.toString();
}

username'chenziwen^password'1234的字符串转成Map

[java] view plain copy print ?

1. /**
2.  * 方法名称:transStringToMap
3.  * 传入参数:mapString 形如 username'chenziwen^password'1234
4.  * 返回值:Map
5. */
6. public static
7. new
8.   java.util.StringTokenizer items;  
9. for(StringTokenizer entrys = new StringTokenizer(mapString, "^");entrys.hasMoreTokens();   
10. null))  
11. new StringTokenizer(entrys.nextToken(), "'");  
12. return
13. }

/**
 * 方法名称:transStringToMap
 * 传入参数:mapString 形如 username'chenziwen^password'1234
 * 返回值:Map
*/
public static Map transStringToMap(String mapString){
  Map map = new HashMap();
  java.util.StringTokenizer items;
  for(StringTokenizer entrys = new StringTokenizer(mapString, "^");entrys.hasMoreTokens(); 
    map.put(items.nextToken(), items.hasMoreTokens() ? ((Object) (items.nextToken())) : null))
      items = new StringTokenizer(entrys.nextToken(), "'");
  return map;
}