Java Web解决Post和Get混合乱码
2014-09-22 08:21
288 查看
主要用两个方法:getQueryString()和getParameterMap()
package com.scjmjd.struts.filter;
import java.io.IOException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
public class DealGetEncodingFilter implements Filter{
private FilterConfig filterConfig = null;
@Override
public void destroy() {
this.filterConfig = null;
}
@SuppressWarnings("unchecked")
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
String encoding = this.filterConfig.getInitParameter("encoding");
request.setCharacterEncoding(encoding);
response.setContentType("text/html;charset="+encoding);
HttpServletRequest httpRequest = (HttpServletRequest)request;
//获取GET参数字符串
String getParamStr = httpRequest.getQueryString();
//放置GET参数的键和值(存在多个值)
Map<String, List<String>> getParamMap = new HashMap<String, List<String>>();
if(getParamStr != null){
String [] getParamArr = getParamStr.split("&");
for(int i=0;i<getParamArr.length;i++){
String [] keyVal = getParamArr[i].split("=");
if(getParamMap.get(keyVal[0]) == null){
List<String> listVal = new ArrayList<String>();
listVal.add(keyVal[1]);
getParamMap.put(keyVal[0], listVal);
}else{
List<String> listVal = getParamMap.get(keyVal[0]);
listVal.add(keyVal[1]);
}
}
}
//获取所有参数
Map<String, Object> paramMap =httpRequest.getParameterMap();
//遍历Get传送的键值
for(String key : getParamMap.keySet()){
String [] paramVals = (String[])paramMap.get(key);
List<String> getParamVals = getParamMap.get(key);
for(int n=0;n<paramVals.length;n++){
//System.out.println("prep"+paramVals
);
for(int m=0;m<getParamVals.size();m++){
//System.out.println("all"+paramVals
+"\t"+"only"+getParamVals.get(m));
//尝试将所有参数转码
String paramValEncode = new String(paramVals
.getBytes("iso-8859-1"),encoding);
//尝试地址栏参数转码
String getParamvalEncode = URLDecoder.decode(getParamVals.get(m),encoding);
//尝试转码后的字符是否一样
if(paramValEncode.equals(getParamvalEncode)){
//System.out.println("prep"+paramVals
);
//转换编码
paramVals
= new String(paramVals
.getBytes("iso-8859-1"),encoding);
//System.out.println("next"+paramVals
);
}
}
}
}
chain.doFilter(request, response);
}
@Override
public void init(FilterConfig filterConfig) throws ServletException {
// TODO Auto-generated method stub
this.filterConfig = filterConfig;
}
}
<filter>
<filter-name>CharacterEncoding</filter-name>
<filter-class>com.scjmjd.struts.filter.DealGetEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
package com.scjmjd.struts.filter;
import java.io.IOException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
public class DealGetEncodingFilter implements Filter{
private FilterConfig filterConfig = null;
@Override
public void destroy() {
this.filterConfig = null;
}
@SuppressWarnings("unchecked")
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
String encoding = this.filterConfig.getInitParameter("encoding");
request.setCharacterEncoding(encoding);
response.setContentType("text/html;charset="+encoding);
HttpServletRequest httpRequest = (HttpServletRequest)request;
//获取GET参数字符串
String getParamStr = httpRequest.getQueryString();
//放置GET参数的键和值(存在多个值)
Map<String, List<String>> getParamMap = new HashMap<String, List<String>>();
if(getParamStr != null){
String [] getParamArr = getParamStr.split("&");
for(int i=0;i<getParamArr.length;i++){
String [] keyVal = getParamArr[i].split("=");
if(getParamMap.get(keyVal[0]) == null){
List<String> listVal = new ArrayList<String>();
listVal.add(keyVal[1]);
getParamMap.put(keyVal[0], listVal);
}else{
List<String> listVal = getParamMap.get(keyVal[0]);
listVal.add(keyVal[1]);
}
}
}
//获取所有参数
Map<String, Object> paramMap =httpRequest.getParameterMap();
//遍历Get传送的键值
for(String key : getParamMap.keySet()){
String [] paramVals = (String[])paramMap.get(key);
List<String> getParamVals = getParamMap.get(key);
for(int n=0;n<paramVals.length;n++){
//System.out.println("prep"+paramVals
);
for(int m=0;m<getParamVals.size();m++){
//System.out.println("all"+paramVals
+"\t"+"only"+getParamVals.get(m));
//尝试将所有参数转码
String paramValEncode = new String(paramVals
.getBytes("iso-8859-1"),encoding);
//尝试地址栏参数转码
String getParamvalEncode = URLDecoder.decode(getParamVals.get(m),encoding);
//尝试转码后的字符是否一样
if(paramValEncode.equals(getParamvalEncode)){
//System.out.println("prep"+paramVals
);
//转换编码
paramVals
= new String(paramVals
.getBytes("iso-8859-1"),encoding);
//System.out.println("next"+paramVals
);
}
}
}
}
chain.doFilter(request, response);
}
@Override
public void init(FilterConfig filterConfig) throws ServletException {
// TODO Auto-generated method stub
this.filterConfig = filterConfig;
}
}
<filter>
<filter-name>CharacterEncoding</filter-name>
<filter-class>com.scjmjd.struts.filter.DealGetEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
相关文章推荐
- java web项目get,post请求参数中文乱码解决
- get请求和post的请求的乱码解决
- get和post提交,乱码解决
- jQuery调用AJAX时Get和post公用的乱码解决方法
- get/post时中文乱码问题的解决办法
- JAVA POST与GET方法中文乱码问题解决方法
- 更深入的TOMCAT中文乱码解决之道,包括GET/POST(转)
- JS通过get、post向jsp传递中文出现乱码的问题的解决
- js调用AJAX时Get和post的乱码解决方法
- Web容器下的get和post方式请求的乱码问题解决
- spring mvc 中文乱码 post与get的方法解决
- GET乱码以及POST乱码的解决方法(转载)
- 小议Servlet接收post和get混合提交中文乱码问题
- 表单提交方式由POST改为GET出现乱码的解决
- Struts2中解决POST请求和GET请求中的中文乱码问题
- JAVAEE开发之POST/GET提交乱码解决总结
- servlet中解决get和post方法提取内容乱码问题
- get、post方法提交时的乱码问题解决
- tomcat post提交和get提交产生乱码的解决办法
- jQuery调用AJAX时Get和post公用的乱码解决方法实例说明