How can I get the string element from the format string using regular expression?

Question

My input string is like this :

 String msgs="<InfoStart>\r\n" 
            + "id:1234\r\n" 
            + "phone:912119882\r\n" 
            + "info_type:1\r\n"
            +<InfoEnd>\r\n"
            +"<InfoStart>\r\n" 
            + "id:5678\r\n" 
            + "phone:912119881\r\n" 
            + "info_type:1\r\n"
            +<InfoEnd>\r\n";

Now I can use the regular expression to get the info array : private static Pattern patter= Pattern.compile("InfoStart>([\\s\\S]*?)<InfoEnd>");,But how to get the id,phone using regular expression?I try to write the code,but it fail,how to fix it?

 private static Pattern infP = Pattern.compile("<InfoStart>([\\s\\S]*?)<InfoEnd>");   
    private static Pattern lineP = Pattern.compile(".*?\r\n");      
    final java.util.regex.Matcher matcher = patter.matcher(msgs);  
    while (matcher.find()){
     String item = matcher.group(1);  
     Matcher matcherLine = lineP.matcher(item); 
      while(matcherLine.find()){
          if(matcherLine.groupCount()>0){
          String value= matcherLine.group(1);
          int firstIndex=value.indexOf(":");
          System.out.println("key:"+value.substring(0, firstIndex)+"value:"+value.substring(firstIndex+1));
          }
      }
 }

Answer 1

Perhaps you can try this:

    Pattern xmlPattern = Pattern.compile("<InfoStart>\\s+id:(\\d+)\\s+phone:(\\d+)\\s+info_type:(\\d+)\\s+<InfoEnd>");
    Matcher matcher = xmlPattern.matcher(msgs);
    while (matcher.find()) {
        System.out.println(matcher.group(1));
        System.out.println(matcher.group(2));
        System.out.println(matcher.group(3));
    }

The output:

1234
912119882
1
5678
912119881
1

But still I have to as say as Tim Biegeleisen mentioned, you'd better use other way around to parse a XML string.

Besides, your input string is incorrect, it should be:

    String msgs="<InfoStart>\r\n"
            + "id:1234\r\n"
            + "phone:912119882\r\n"
            + "info_type:1\r\n"
            + "<InfoEnd>\r\n" // you lack an open double quote;
            +"<InfoStart>\r\n"
            + "id:5678\r\n"
            + "phone:912119881\r\n"
            + "info_type:1\r\n"
            + "<InfoEnd>\r\n"; // you lack an open double quote;