Java 判断字符串是否包含中文正则表达式

public static boolean isContainChinese(String str) {
 
  Pattern p=Pattern.compile("[u4e00-u9fa5]");
  Matcher m=p.matcher(str);
  if(m.find())
  {
   return true;
  }
  return false;
 }

package wenhq.com.cn;   
import java.util.regex.Matcher;  
import java.util.regex.Pattern;  
public class test {  
    static String regEx = "[u4e00-u9fa5]";   
    static Pattern pat = Pattern.compile(regEx);  
  public static void main(String[] args) {  
      String input = "亲亲宝宝-http://www.111com.net";
      System.out.println(isContainsChinese(input));     
      input = "http://www.111com.net";
      System.out.println(isContainsChinese(input));     
    }  
   public static boolean isContainsChinese(String str)     
    {    
        Matcher matcher = pat.matcher(str);     
        boolean flg = false;  
        if (matcher.find())    {    
            flg = true;   
        }     
        return flg;     
    }  
 
}