package service.utils;
import java.util.List;
import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONObject;
import org.omg.CORBA.Environment;
public class StringUtil {
/**
*
* @Description: 判断字符串是否为�?
* @param str
* @return
*/
public static boolean isNull(String str) {
boolean flag = false;
if (null == str || str.trim().equals("")
|| str.trim().equalsIgnoreCase("null")) {
flag = true;
}
return flag;
}
/**
*
* @Description:TODO判断json对象是否为空
* @param@param jo
* @param@return
* @return boolean
* @author zhuw
* @date 2013-8-4 下午5:28:17
*/
public static boolean isNull(JSONObject jo) {
return jo == null;
}
/**
*
* @Description:TODO判断JSONArray是否为空
* @param@param ja
* @param@return
* @return boolean
* @author zhuw
* @date 2013-8-4 下午5:28:37
*/
public static boolean isNull(JSONArray ja) {
if (null==ja || ja.length() == 0) {
return true;
} else {
return false;
}
}
public static boolean isNull(String[] strArray) {
boolean flag = false;
if (null == strArray || strArray.length == 0) {
flag = true;
}
return flag;
}
public static boolean isNull(List list) {
boolean flag = false;
if (null == list || list.size() == 0) {
flag = true;
}
return flag;
}
}