JAVA Json工具处理类

String jsonDataEntryStr = "{\"name\":\"张三1\",\"age\":18,\"dataList\":[1,23,4,5,56,7,8,9,0]}"; String jsonDataArrayStr = "[\n" + " {\"name\":\"张三1\",\"age\":18,\"dataList\":[1,23,4,5,56,7,8,9,0]},\n" + " {\"name\":\"张三2\",\"age\":18,\"dataList\":[1,23,4,5,56,7,8,9,0]},\n" + " {\"name\":\"张三3\",\"age\":18,\"dataList\":[1,23,4,5,56,7,8,9,0]},\n" + " {\"name\":\"张三4\",\"age\":18,\"dataList\":[1,23,4,5,56,7,8,9,0]},\n" + " {\"name\":\"张三5\",\"age\":18,\"dataList\":[1,23,4,5,56,7,8,9,0]},\n" + " {\"name\":\"张三6\",\"age\":18,\"dataList\":[1,23,4,5,56,7,8,9,0]},\n" + " {\"name\":\"张三7\",\"age\":18,\"dataList\":[1,23,4,5,56,7,8,9,0]},\n" + " {\"name\":\"张三8\",\"age\":18,\"dataList\":[1,23,4,5,56,7,8,9,0]},\n" + " {\"name\":\"张三9\",\"age\":18,\"dataList\":[1,23,4,5,56,7,8,9,0]},\n" + " {\"name\":\"张三10\",\"age\":18,\"dataList\":[1,23,4,5,56,7,8,9,0]},\n" + " {\"name\":\"张三11\",\"age\":18,\"dataList\":[1,23,4,5,56,7,8,9,0]}\n" + "]"; long before = System.currentTimeMillis(); // 将json对象转换为JsonObject JsonObject jsonObject = JSON.parseObject(jsonDataEntryStr); // 将JsonObject转换为java对象 User user = jsonObject.toJavaObject(User.class); System.out.printf("java对象：%s\r\n",user.toString()); // 将JsonObject转换为Json字符串 String jsonDataStr = jsonObject.toString(); System.out.printf("java对象字符串：%s\n",jsonDataStr); // 将json数组转换为JsonArray JsonArray jsonArray = JSON.parseArray(jsonDataArrayStr); // 将JsonArray转换为java对象列表 List userList = jsonArray.toJavaObject(User.class); System.out.printf("java对象列表：%s\n",userList); // 将JsonObject转换为Json字符串 String jsonArrayDataStr = jsonArray.toString(); System.out.printf("java对象列表字符串：%s\n",jsonArrayDataStr); System.out.println(userList); System.out.println("解析json耗时："+(System.currentTimeMillis()-before));