com.dahua.eco.base.spring.utils.ParamUtils Maven / Gradle / Ivy
package com.dahua.eco.base.spring.utils;
import com.alibaba.fastjson.JSONObject;
import javax.servlet.http.HttpServletRequest;
import java.beans.BeanInfo;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.Method;
import java.util.*;
public class ParamUtils {
/**
*
* Checks if a String is empty ("") or null.
*
*
*
* StringUtils.isEmpty(null) = true
* StringUtils.isEmpty("") = true
* StringUtils.isEmpty(" ") = false
* StringUtils.isEmpty("bob") = false
* StringUtils.isEmpty(" bob ") = false
*
*
*
* NOTE: This method changed in Lang version 2.0. It no longer trims the
* String. That functionality is available in isBlank().
*
*
* @param str
* the String to check, may be null
* @return true if the String is empty or null
*/
public static boolean isEmpty(String str) {
return str == null || str.length() == 0;
}
/**
*
* Checks if a String is not empty ("") and not null.
*
*
*
* StringUtils.isNotEmpty(null) = false
* StringUtils.isNotEmpty("") = false
* StringUtils.isNotEmpty(" ") = true
* StringUtils.isNotEmpty("bob") = true
* StringUtils.isNotEmpty(" bob ") = true
*
*
* @param str
* the String to check, may be null
* @return true if the String is not empty and not null
*/
public static boolean isNotEmpty(String str) {
return !isEmpty(str);
}
/**
*
* Checks if a String is whitespace, empty ("") or null.
*
*
*
* StringUtils.isBlank(null) = true
* StringUtils.isBlank("") = true
* StringUtils.isBlank(" ") = true
* StringUtils.isBlank("bob") = false
* StringUtils.isBlank(" bob ") = false
*
*
* @param str
* the String to check, may be null
* @return true if the String is null, empty or whitespace
* @since 2.0
*/
public static boolean isBlank(String str) {
int strLen;
if (str == null || (strLen = str.length()) == 0) {
return true;
}
for (int i = 0; i < strLen; i++) {
if ((Character.isWhitespace(str.charAt(i)) == false)) {
return false;
}
}
return true;
}
/**
*
* Checks if a String is not empty (""), not null and not whitespace only.
*
*
*
* StringUtils.isNotBlank(null) = false
* StringUtils.isNotBlank("") = false
* StringUtils.isNotBlank(" ") = false
* StringUtils.isNotBlank("bob") = true
* StringUtils.isNotBlank(" bob ") = true
*
*
* @param str
* the String to check, may be null
* @return true if the String is not empty and not null and
* not whitespace
* @since 2.0
*/
public static boolean isNotBlank(String str) {
return !isBlank(str);
}
/**
* 用於处理JS参解码,配合WEB页面二次转码
* JS：params="&name="+encodeURI(encodeURI("姓名"));
* JAVA：ParamUtil.decode(request,"name")=="姓名"
*
* @param value
* @return
* @throws UnsupportedEncodingException
*/
public static String decode(String value) {
try {
return java.net.URLDecoder.decode(value, "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}
/**
* 获取Request中的参，并且去除NULL
*
* @param request
* @param param
* @return
*/
public static String get(HttpServletRequest request, String param ){
return get(request, param,"");
}
/**
* 获取Request中的参，并且去除NULL,以指定内容取代
*
* @param request
* @param param
* @param defValue
* @return
*/
public static String get(HttpServletRequest request, String param,
String defValue) {
String value = request.getParameter(param);
return null == value ? defValue : value.trim();
}
/**
* 整型值
*
* @param request
* @param param
* @param defValue
* @return
*/
public static int getInt(HttpServletRequest request, String param,
int defValue) {
String value = request.getParameter(param);
if (!isEmpty(value)) {
try {
return Integer.parseInt(value);
} catch (Exception e) {
}
}
return defValue;
}
/**
* 布林值
*
* @param request
* @param param
* @return
*/
public static boolean getBoolean(HttpServletRequest request, String param) {
return "true".equals(get(request, param));
}
/**
* 金额类型
*
* @param request
* @param param
* @return
*/
public static Double getDouble(HttpServletRequest request, String param) {
try {
String value = get(request, param, "0").replaceAll(",", "");
return new Double(value);
} catch (Exception e) {
}
return new Double(0.0);//zhangxunhong 于2012-4-27 修改 (旧版是 return null）
}
/**
* 日期类型字串yyyyMMdd
*
* @param request
* @param param
* @return
*/
public static String getDateStr(HttpServletRequest request, String param) {
return get(request, param).replaceAll("-|\\/", "");
}
/**
* 向从Request中获取字串值到Map中，包含''值(ibatis动态条件用到)
*
* @param request
* @param param
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public static void putStr2Map(HttpServletRequest request, String param,
Map paramMap) {
String value = request.getParameter(param);
if (null != value) {
paramMap.put(param, value.trim());
}
}
/**
* 向从Request中获取字串值到Map中，包含''值(ibatis动态条件用到) 去掉了左边的空格 2010-04-29 fanhong
*
* @param request
* @param param
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public static void putQRYStr2Map(HttpServletRequest request, String param,
Map paramMap) {
String value = request.getParameter(param);
if (null != value) {
paramMap.put(param, lTrim(value));
}
}
/**
* 向从Request中获取整型值到Map中，不包含空值
*
* @param request
* @param param
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
public static void putInt2Map(HttpServletRequest request, String param,
Map paramMap) {
paramMap.put(param, new Integer(getInt(request, param, 0)));
}
/**
* 向从Request中获取浮点值到Map中，不包含空值
*
* @param request
* @param param
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public static void putDouble2Map(HttpServletRequest request, String param,
Map paramMap) {
paramMap.put(param, getDouble(request, param));
}
/**
* 向从Request中将日期值yyyy-MM-dd转成yyyyMMdd到Map中，不包含空值
*
* @param request
* @param param
* @param map
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public static void putDateStr2Map(HttpServletRequest request, String param,
Map map) {
String value = request.getParameter(param);
if (null != value) {
map.put(param, value.replaceAll("-|\\/", ""));
}
}
private static String[] forbids = { "action" };
private static boolean checkParams(String name) {
for (int i = 0, j = forbids.length; i < j; i++) {
if (forbids[i].equals(name))
return false;
}
return true;
}
public static String generyHiddenInput(String name, String value) {
String html = "";
html = html.replaceFirst("0", name);
html = html.replaceFirst("1", value);
return html;
}
public static String fixParamToHtml(String[] params,
HttpServletRequest request, String prefix) {
StringBuffer bf = new StringBuffer();
for (int i = 0, j = params.length; i < j; i++) {
String name = params[i];
String value = get(request, name);
if (!isEmpty(value)) {
bf.append(generyHiddenInput(prefix + name, value));
}
}
return bf.toString();
}
public static String fixParamToHtml(HttpServletRequest request,
String prefix) {
return fixParamToHtml(request, prefix, true);
}
@SuppressWarnings("rawtypes")
public static String fixParamToHtml(HttpServletRequest request,
String prefix, boolean forbid) {
StringBuffer bf = new StringBuffer();
Enumeration names = request.getParameterNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
String value = get(request, name);
if (!isEmpty(value)) {
if (forbid) {
if (!checkParams(name)) {
continue;
}
}
bf.append(generyHiddenInput(prefix + name, value));
}
}
return bf.toString();
}
@SuppressWarnings("rawtypes")
public static String decodeFixParamToHtml(HttpServletRequest request,
String prefix) {
StringBuffer bf = new StringBuffer();
Enumeration names = request.getParameterNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
if (name.startsWith(prefix)) {
try {
String value = decode(get(request, name));
if (!isEmpty(value)) {
bf.append(generyHiddenInput(name, value));
}
} catch (Exception e) {
}
}
}
return bf.toString();
}
@SuppressWarnings("rawtypes")
public static String generyFixParamToHtml(HttpServletRequest request,
String prefix) {
StringBuffer bf = new StringBuffer();
Enumeration names = request.getParameterNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
if (name.startsWith(prefix)) {
try {
String value = get(request, name);
if (!isEmpty(value)) {
bf.append(generyHiddenInput(name, value));
}
} catch (Exception e) {
}
}
}
return bf.toString();
}
@SuppressWarnings("rawtypes")
public static String revertFixParamToHtml(HttpServletRequest request,
String prefix) {
StringBuffer bf = new StringBuffer();
Enumeration names = request.getParameterNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
if (name.startsWith(prefix) && !"_backUrl".equals(name)) {
String value = get(request, name);
name = name.substring(prefix.length());
if (!isEmpty(value)) {
bf.append(generyHiddenInput(name, value));
}
}
}
return bf.toString();
}
@SuppressWarnings("rawtypes")
public static String deRevertFixParamToHtml(HttpServletRequest request,
String prefix) {
StringBuffer bf = new StringBuffer();
Enumeration names = request.getParameterNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
if (name.startsWith(prefix)) {
try {
String value = decode(get(request, name));
if (!isEmpty(value)) {
name = name.substring(prefix.length());
bf.append(generyHiddenInput(name, value));
}
} catch (Exception e) {
}
}
}
return bf.toString();
}
/**
* 将装饰过的HttpServletRequest参分离出来，存储到MAP中
* request: _name ==> map:_name
*
* @param request
* @param prefix
* @return
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public static Map enfixParam(HttpServletRequest request, String prefix) {
Enumeration names = request.getParameterNames();
Map params = new HashMap();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
if (name.startsWith(prefix)) {
String value = get(request, name);
if (!isEmpty(value)) {
params.put(name, value);
}
}
}
return params;
}
/**
* 还原被装饰过的HttpServletRequest参
* 去除装饰，并将还原后的参存储到MAP中
* request: _name ==> map:name
*
* @param request
* @param prefix
* @return
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public static Map defixParam(HttpServletRequest request, String prefix) {
Enumeration names = request.getParameterNames();
Map params = new HashMap();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
if (name.startsWith(prefix)) {
String value = get(request, name);
name = name.substring(prefix.length());
if (!isEmpty(value)) {
params.put(name, value);
}
}
}
return params;
}
/**
* 将装饰过的HttpServletRequest参分离出来，并拼接成一个新的Url字串
*
* @param request
* @param prefix
* @return a=b&c=d&...
*/
@SuppressWarnings("rawtypes")
public static String getEnfixParamString(HttpServletRequest request,
String prefix) {
Enumeration names = request.getParameterNames();
StringBuffer uri = new StringBuffer("");
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
if (name.startsWith(prefix)) {
String value = get(request, name);
if (!isEmpty(value)) {
uri.append("&");
uri.append(name);
uri.append("=");
uri.append(decode(value));
}
}
}
return uri.toString();
}
/**
* 解析请求，并将参值对以key:value字串保存
*
* @param request
* @return
*/
@SuppressWarnings("rawtypes")
public static String favorit(HttpServletRequest request) {
String url = request.getRequestURL().toString();
String ctx = request.getContextPath();
int index = url.indexOf(ctx);
String name, value;
StringBuffer bf = new StringBuffer();
bf.append("URL:'").append(url.substring(index + ctx.length() + 1))
.append("'");
Enumeration names = request.getParameterNames();
while (names.hasMoreElements()) {
name = (String) names.nextElement();
value = get(request, name);
if (!(null == value || "".equals(value))) {
bf.append(",").append(name).append(":\"").append(value).append(
"\"");
}
}
return bf.toString();
}
/**
* 主机报表，大资料档案需要拆分，本方法可以在原档名中加入拆分档案序号, 获得拆分档名
*
* @param fileName
* @param xSizeIndex
* @param fix
* @return
*/
public static String splitFileName(String fileName, int xSizeIndex,
String fix) {
if (xSizeIndex > 0) {
// abc.del To abc_N.del
int index = fileName.lastIndexOf(fix);
StringBuffer bf = new StringBuffer();
bf.append(fileName.substring(0, index));
bf.append("_").append(xSizeIndex);
bf.append(fileName.substring(index));
return bf.toString();
}
return fileName;
}
// 2010-04-29去掉左边的空格
public static String rTrim(String s) {
int len = s.length();
int st = 0;
int off = 0; /* avoid getfield opcode */
char[] val = s.toCharArray(); /* avoid getfield opcode */
while ((st < len) && (val[off + len - 1] <= ' ')) {
len--;
}
return ((st > 0) || (len < s.length())) ? s.substring(st, len) : s;
}
// 2010-04-29去掉右边的空格
public static String lTrim(String s) {
int len = s.length();
int st = 0;
int off = 0; /* avoid getfield opcode */
char[] val = s.toCharArray(); /* avoid getfield opcode */
while ((st < len) && (val[off + st] <= ' ')) {
st++;
}
return ((st > 0) || (len < s.length())) ? s.substring(st, len) : s;
}
// 拆分字符串,指定返回数组的字符串，下标从1开始
public static String ToOrderCol(HttpServletRequest request, String col,
int n) {
String orderCol = ParamUtils.get(request, col);
if (n >= 0) {
if (!"".equals(orderCol)) {
String[] splitCol = orderCol.split(",");
if (0 != splitCol.length) {
if (n == 0) {
return splitCol[n];
} else {
return splitCol[n - 1];
}
}
}
}
return "";
}
public static Map transBean2Map(Object obj) {
if(obj == null){
return null;
}
Map map = new HashMap();
try {
BeanInfo beanInfo = Introspector.getBeanInfo(obj.getClass());
PropertyDescriptor[] propertyDescriptors = beanInfo.getPropertyDescriptors();
for (PropertyDescriptor property : propertyDescriptors) {
String key = property.getName();
// 过滤class属性
if (!key.equals("class")) {
// 得到property对应的getter方法
Method getter = property.getReadMethod();
Object value = getter.invoke(obj);
map.put(key, value);
}
}
} catch (Exception e) {
}
return map;
}
/*把request参数转化为Map*/
@SuppressWarnings("unchecked")
public static Map param2Map(HttpServletRequest request) {
Map param = new HashMap();
Enumeration names = request.getParameterNames();
for (Enumeration e = names; e.hasMoreElements();) {
String thisName = e.nextElement();
String thisValue = request.getParameter(thisName);
param.put(thisName, thisValue.replaceAll("%26", "&").replaceAll("%23", "#").replaceAll("%25", "%").replaceAll("%", "/%").replaceAll("_", "/_").replaceAll("//_", "/_"));
}
return param;
}
/**
* 把request参数转化为JSONObject
*/
@SuppressWarnings("unchecked")
public static JSONObject param2JSONObject(HttpServletRequest request) {
JSONObject jsonObject = new JSONObject();
Enumeration names = request.getParameterNames();
for (Enumeration e = names; e.hasMoreElements();) {
String thisName = e.nextElement();
String thisValue = request.getParameter(thisName);
jsonObject.put(thisName, thisValue);
}
return jsonObject;
}
public static boolean containsKey(List> list, String key, String value){
if(list != null && list.size() > 0){
for(int index=0; index < list.size(); index++){
Map item = list.get(index);
if(value.equals(item.get(key))){
return true;
}
}
}
return false;
}
/**
* 添加get请求参数
* @param url
* @param params
* @return
*/
public static String getUrl(String url, Map params){
//添加url参数
if ( params != null) {
Iterator it=params.keySet().iterator();
StringBuffer sb=null;
while(it.hasNext()){
String key=it.next();
Object value=params.get(key);
if(value == null) {
continue;
}
if(sb==null){
sb=new StringBuffer();
sb.append("?");
}else{
sb.append("&");
}
sb.append(key);
sb.append("=");
sb.append(value);
}
url+=sb==null?"":sb.toString();
}
return url;
}
/**
* 追加参数信息到url后面，形成完整的请求url
*
* @param url 原url（不含？后面的参数信息）
* @param args 需要附带的JSONObject类型参数
*
* @return 完整的带有参数的请求url
*/
public static String getUrlWithParams(String url, JSONObject args) {
if (args == null) {
return url;
}
Map paramMap = new HashMap();
for (String key : args.keySet()) {
Object valueObject = args.get(key);
// 只接收简单的String/Integer类型的参数
if (valueObject instanceof String || valueObject instanceof Integer) {
paramMap.put(key, String.valueOf(valueObject));
}
}
String resultUrl = ParamUtils.getUrl(url, paramMap);
return resultUrl;
}
}