Read .properties file

rules.properties :

rule1.id=callagent
rule1.name=Longest Waiting 1
rule1.type=custom
rule1.class=com.brekeke.ctiserver.acd.RuleCallAgent
rule1.description=Assign a call to an agent who has been waiting the longest.
rule1.param1.target=agent_id
rule1.param1.label=Timeout (sec)
rule1.param2.label=Queue size
rule1.param3.label=Next number
rule1.param4.label=Next number14

rule2.id=test
rule2.name=High Skill 1
rule2.type=custom
rule2.description=Find an agent who has the highest skill.
rule2.rule1.id=callagent
rule2.rule2.id=callagent
rule2.param1.target=rule1.param1
rule2.param1.label=Timeout (sec)
rule2.param2.target=rule2.param1
rule2.param2.label=Queue size
rule2.param3.label=Next number
rule2.param4.label=Next number24

ReadPro.java

public class ReadPro {

	/**
	 * @author Bill Zhang
	 */
	public static void main(String[] args) {
          File file = new File("src/pro/rules.properties");
          if(file.exists()){
        	  try {
				FileInputStream fistream = new FileInputStream(file);
				InputStream inStream = new BufferedInputStream(fistream);
				Properties pro = new Properties();
				try {
					pro.load(inStream);
//					 System.out.println("=============Get Value By rule_id=====================");
//					 System.out.println(pro.get("rule1.id"));
					 System.out.println("===========================");
					Enumeration<?> enu = pro.propertyNames();
					while(enu.hasMoreElements()){ 
						String key = enu.nextElement().toString().trim(); 
						String[] strTemp = key.split("\\.");  //  "\\" is a convert symbol without it not work in the JDK 6.x
						for(int i=0; i<strTemp.length; i++){
							if(strTemp[i].equals("id")) 
							System.out.println(pro.get(key));
						}
					}
				} catch (IOException e) {
					System.out.println("+++++++++IOException++++++++");
					e.printStackTrace();
				}
			} catch (FileNotFoundException e) { 
                System.out.println("++++++++FileNotFoundException+++++++++++");
				e.printStackTrace();
			}
          }else{
        	  System.out.println("File Not Found!");
          }
          
	}

}