import java.util.ArrayList;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

public class TestDemo {

    public static void main(String[] args) {

        ArrayList json = new ArrayList();

        json.add("111");

        json.add("222");

        json.add("333");

        User user = new User();

        user.setJson(json);

        user.setCode("200");

        user.setMessage("true");

        String string = "(" + JSON.toJSONString(user) + ")";

        System.out.println(string);

        // String regex = "\"json\":(.*?),\"message\"";// 使用非贪婪模式！

        Pattern pattern = Pattern.compile("\\[\"(.*?)\"\\]");

        Matcher matcher = pattern.matcher(string);

        while (matcher.find()) {

            System.out.println(matcher.group(1));

        }

        String parse = "[{CSTM_NO:\"11118\",CSTM_NAME:\"广东XX电力有限公司\",FIX_GNL:\"111810158\",FIX_ACC:\"D201306070003\"," +

                "OP_FLAG:\"正常\",BUSS_KIND_NAME:\"三个月定期存款\",BAL:\"25,178,750.00\",AVAL_BAL:\"25,178,750.00\"," +

                "OP_DATE:\"2013-06-07\",DUE_DATE:\"2013-12-07\",ROWNUM_:1,idx:0},{CSTM_NO:\"11118\"," +

                "CSTM_NAME:\"广东XX电力有限公司\",FIX_GNL:\"111810158\",FIX_ACC:\"D201306070002\",OP_FLAG:\"正常\"," +

                "BUSS_KIND_NAME:\"三个月定期存款\",BAL:\"25,178,750.00\",AVAL_BAL:\"25,178,750.00\",OP_DATE:\"2013-06-07\"," +

                "DUE_DATE:\"2013-12-07\",ROWNUM_:3,idx:2},{CSTM_NO:\"11118\",CSTM_NAME:\"广东XX电力有限公司\"," +

                "FIX_GNL:\"111810158\",FIX_ACC:\"D201306070005\",OP_FLAG:\"正常\",BUSS_KIND_NAME:\"三个月定期存款\"," +

                "BAL:\"25,178,750.00\",AVAL_BAL:\"25,178,750.00\",OP_DATE:\"2013-06-07\",DUE_DATE:\"2013-12-07\"," +

                "ROWNUM_:4,idx:3}]";

        String regex = "FIX_ACC:(.*?),OP_FLAG";//别忘了使用非贪婪模式！

        Matcher matcher1 = Pattern.compile(regex).matcher(parse);

        while (matcher1.find()) {

            String ret = matcher1.group(1);

            System.out.println(ret);

        }

        String str = "我是[001]真心求救的[002]，你能帮帮我吗";

        Pattern pattern1 = Pattern.compile("\\[(.*?)\\]");

        Matcher matcher2 = pattern1.matcher(str);

        while(matcher2.find()){

            System.out.println(matcher2.group(1));

        }

    }

}

({"code":"200","json":["111","222","333"],"message":"true"})

111","222","333

"D201306070003"

"D201306070002"

"D201306070005"

001

002

Process finished with exit code 0