java mapString转换成Map类型

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/**  * 将Map字符串转换为Map  *  * @param str Map字符串  * @return Map  */ public static Map<String,String> mapStringToMap(String str){     str = str.substring(1, str.length()-1);     String[] strs = str.split(",");     Map<String,String> map = new HashMap<String, String>();     for (String string : strs) {         String key = string.split("=")[0];         String value = string.split("=")[1];         // 去掉头部空格         String key1 = key.trim();         String value1 = value.trim();         map.put(key1, value1);     }     return map; }   public static void main(String[] args) {     Map<String, String> map = new HashMap<String, String>();     map.put("key1", "value1");     map.put("key2", "value2");     map.put("key3", "value3");     System.out.println("source: " + map.toString());       String mapStr = map.toString();     Map<String, String> newMap = mapStringToMap(mapStr);     System.out.println("transfer: " + map.toString()); }

执行结果：

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1 2	source: {key1=value1, key2=value2, key3=value3} transfer: {key1=value1, key2=value2, key3=value3}