package com.mandi.common;
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import java.io.UnsupportedEncodingException;
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import java.lang.reflect.Field;
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import java.net.URLDecoder;
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import java.util.Date;
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import java.sql.Time;
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import java.sql.Timestamp;
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import java.text.SimpleDateFormat;
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import javax.servlet.http.HttpServletRequest;
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import org.apache.commons.lang3.StringUtils;
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/**
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* httpservletrequest。getparameter，并转换为响应的类型
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* @author Administrator
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*
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*/
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public class RequestParam {
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public static int getInt(HttpServletRequest request,String name)
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{
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String tstr=request.getParameter(name);
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if(tstr!=null)
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tstr=StringUtils.trimToEmpty(tstr);
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int i=0;
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try {
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i=Integer.valueOf(tstr);
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} catch (Exception e) {
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// TODO: handle exception
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}
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return i;
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}
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private static float getFloat(HttpServletRequest request, String name) {
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String tstr=request.getParameter(name);
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if(tstr!=null)
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tstr=StringUtils.trimToEmpty(tstr);
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if(tstr==null)
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return 0;
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float i=0.0f;
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try {
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i=Float.valueOf(tstr);
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} catch (Exception e) {
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// TODO: handle exception
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}
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return i;
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}
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private static byte getByte(HttpServletRequest request, String name) {
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String tstr=request.getParameter(name);
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if(tstr==null)
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return 0;
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tstr=StringUtils.trimToEmpty(tstr);
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byte i=0;
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try {
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i=Byte.valueOf(tstr);
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} catch (Exception e) {
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// TODO: handle exception
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}
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return i;
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}
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public static long getLong(HttpServletRequest request,String name)
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{
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String tstr=request.getParameter(name);
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if(tstr==null)
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return 0;
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tstr=StringUtils.trimToEmpty(tstr);
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long i=0;
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try {
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i=Long.valueOf(tstr);
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} catch (Exception e) {
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// TODO: handle exception
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}
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return i;
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}
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public static double getDouble(HttpServletRequest request,String name)
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{
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String tstr=request.getParameter(name);
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if(tstr==null)
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return 0;
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tstr=StringUtils.trimToEmpty(tstr);
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double i=0;
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try {
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i=Double.valueOf(tstr);
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} catch (Exception e) {
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// TODO: handle exception
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}
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return i;
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}
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public static Date getDate(HttpServletRequest request,String name)
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{
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String tstr=request.getParameter(name);
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Date tt=null;
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if(tstr!=null)
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tstr=StringUtils.trimToEmpty(tstr);
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try {
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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tt=sdf.parse(tstr);
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} catch (Exception e) {
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try{
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm");
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tt=sdf.parse(tstr);
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}catch(Exception ee){
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try{
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
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tt=sdf.parse(tstr);
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}catch(Exception eee){
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try{
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM");
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tt=sdf.parse(tstr);
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}catch(Exception eeee){
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}
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}
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}
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}
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return tt;
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}
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public static Timestamp Timestamp(HttpServletRequest request,String name)
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{
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String tstr=request.getParameter(name);
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Timestamp tt=null;
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if(tstr!=null)
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tstr=StringUtils.trimToEmpty(tstr);
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try {
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SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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tt=new Timestamp(sdf.parse(tstr).getTime());
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} catch (Exception e) {
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// TODO: handle exception
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}
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return tt;
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}
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public static Time getTime(HttpServletRequest request,String name)
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{
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String tstr=request.getParameter(name);
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if(tstr!=null)
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tstr=StringUtils.trimToEmpty(tstr);
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Time tt=null;
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try {
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SimpleDateFormat sdf=new SimpleDateFormat("HH:mm:ss");
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tt=new Time(sdf.parse(tstr).getTime());
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} catch (Exception e) {
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// TODO: handle exception
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}
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return tt;
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}
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public static boolean getBool(HttpServletRequest request,String name)
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{
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String tstr=request.getParameter(name);
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if(tstr!=null)
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tstr=StringUtils.trimToEmpty(tstr);
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try {
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if("true".equals(tstr)||"1".equals(tstr.trim()))
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return true;
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} catch (Exception e) {
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// TODO: handle exception
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}
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return false;
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}
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public static String getString(HttpServletRequest request,String name)
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{
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String tstr=request.getParameter(name);
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if(tstr!=null)
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tstr=StringUtils.trimToEmpty(tstr);
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if(StringUtils.isBlank(tstr)){
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return null;
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}
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return tstr;
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}
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public static String getSqlString(HttpServletRequest request,String name)
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{
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String tstr=request.getParameter(name);
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if(tstr!=null)
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tstr=StringUtils.trimToEmpty(tstr);
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if(tstr!=null)
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tstr=BasicMethod.sqlformat(tstr);
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if(StringUtils.isBlank(tstr)){
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return null;
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}
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return tstr;
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}
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public static String getURLString(HttpServletRequest request,String name)
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{
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String tstr=request.getParameter(name);
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if(tstr==null||tstr.equals(""))
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return "";
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try {
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String tstr1=new String(tstr.getBytes("ISO-8859-1"), "UTF-8");
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return tstr1.trim();
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} catch (UnsupportedEncodingException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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return tstr;
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}
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/*
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* <script language="JavaScript">
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document.write(encodeURI('http://www.blogjava.net/chenlb/abc 中文'));
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</script>
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String url = "http://www.blogjava.net/chenlb/abc%20%E4%B8%AD%E6%96%87";
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try {
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System.out.println(URLDecoder.decode(url, "UTF-8"));
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System.out.println(URLDecoder.decode(url, "GBK"));//乱码
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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}
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*/
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public static String getDecodeStr(HttpServletRequest request,String name)
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{
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String tstr=request.getParameter(name);
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try {
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tstr= URLDecoder.decode(tstr,"UTF-8");
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} catch (UnsupportedEncodingException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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return tstr;
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}
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public static <T extends Enum<T>> T getenum(HttpServletRequest r,String name,Class<T> clazz)
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{
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String tstr=r.getParameter(name);
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T t=null;
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try {
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t=Enum.valueOf(clazz, tstr);
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} catch (Exception e) {
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}
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return t;
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}
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public static <T> T getobj(HttpServletRequest r,T obj)
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{
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@SuppressWarnings("rawtypes")
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Class cls=obj.getClass();
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try {
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Field[] fs=cls.getDeclaredFields();
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for (Field field : fs) {
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field.setAccessible(true);
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String fn=field.getName();
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if(field.getType()==String.class)
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{
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String t=RequestParam.getString(r, fn);
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if(t!=null)
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field.set(obj, t);
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}else if(field.getType()==Timestamp.class)
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{
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Timestamp tt=RequestParam.Timestamp(r, fn);
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if(tt!=null)
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field.set(obj, tt);
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}else if(field.getType()==Date.class)
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{
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Date dt=RequestParam.getDate(r, fn);
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if(dt!=null)
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field.set(obj, dt);
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}else if(field.getType()==byte.class||field.getType()==Byte.class)
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{
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byte i=getByte(r, fn);
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if(i!=0)
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field.setByte(obj, i);
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}else if(field.getType()==float.class||field.getType()==Float.class)
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{
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float i=getFloat(r, fn);
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if(i!=0)
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field.setFloat(obj, i);
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}else if(field.getType()==int.class||field.getType()==Integer.class)
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{
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int i=getInt(r, fn);
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if(i!=0)
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field.setInt(obj, i);
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}else if(field.getType()==double.class||field.getType()==Double.class)
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{
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Double d=getDouble(r, fn);
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if(Math.abs(d)>0.0001)
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field.setDouble(obj, d);
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}else if(field.getType()==long.class||field.getType()==Long.class)
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{
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Long l=getLong(r, fn);
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if(l!=0)
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field.setLong(obj, l);
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}else if(field.getType()==Boolean.class||field.getType()==boolean.class)
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{
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Boolean b=RequestParam.getBool(r, fn);
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field.setBoolean(obj, b);
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}
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//System.out.println(field.getType().toString()+(field.getType()==int.class));
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}
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} catch (IllegalAccessException e) {
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}
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return obj;
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}
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}
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