{"success":true,"value":"[{\"lastUpdateTime\":\"2018-10-10 13:52:18\",\"lastUpdateStafNo\":\"5473401\",\"lastUpdateStafNam\":\"\",\"menuNo\":\"0231\",\"menuNam\":\"预警信号\",\"supMenuNo\":\"root\",\"isLeaf\":\"1\",\"leaf\":1,\"menuUrl\":\"/warningsign/WarningSignAction_initNew.action\",\"orderNo\":6,\"isEnabled\":\"1\",\"iconUrl\":\"1_04.png\",\"isDeploy\":\"0\"}]"}
String str1 = string1;
String tmp = StringEscapeUtils.unescapeJavaScript(str1);
String newString = tmp;
//除去json字符串中的\,string1就是上面的一段json字符串