会python真的可以为所欲为0(回)
335天前
这里还有人吗1(回)
521天前这里还有人吗0(回)
521天前
每天面对着电脑屏幕，敲打键盘。我所面对的并不只是代码，而是一种生活方式。0(回)
745天前到处都是羊，不想上班0(回)
825天前
鸽子
0(回)
829天前
Character.zip(免费下载)[0 次下载]package fengke.servlet; |
import java.io.IOException; |
import java.io.PrintWriter; |
import javax.servlet.ServletException; |
import javax.servlet.http.HttpServlet; |
import javax.servlet.http.HttpServletRequest; |
import javax.servlet.http.HttpServletResponse; |
/** |
* 解决乱码问题的方式 |
* @author 锋客 |
* |
*/ |
public class Character extends HttpServlet { |
public void doGet(HttpServletRequest request, HttpServletResponse response) |
throws ServletException, IOException { |
response.setContentType("text/html"); |
this.doPost(request, response); |
} |
|
public void doPost(HttpServletRequest request, HttpServletResponse response) |
throws ServletException, IOException { |
|
response.setContentType("text/html"); |
/*1.采用设置字符集的方式 |
* request.setCharacterEncoding("utf-8"); |
*/ |
/*2.设置过滤器 ====CoreFilter.java |
* 配置web.xml |
*/ |
/* |
* 3.采用转码的方式 |
* String s = new String(request.getParameter("c").getBytes("ISO8859-1"),"UTF-8"); |
*/ |
|
String s = request.getParameter("c"); |
System.out.println(s); |
} |
|
} |
=============================================== |
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> |
<% |
String path = request.getContextPath(); |
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; |
%> |
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> |
<html> |
<head> |
<base href="<%=basePath%>"> |
|
<title>My JSP 'index.jsp' starting page</title> |
<meta http-equiv="pragma" content="no-cache"> |
<meta http-equiv="cache-control" content="no-cache"> |
<meta http-equiv="expires" content="0"> |
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> |
<meta http-equiv="description" content="This is my page"> |
<!-- |
<link rel="stylesheet" type="text/css" href="styles.css"> |
--> |
</head> |
<!-- 解决乱码问题 --> |
<body> |
<table> |
<form action="Character" method="post" > |
<tr> |
<td><input type="text" name="c" value="中国"></td> |
<td><input type="submit" value="提交"></td> |
</tr> |
</form> |
</table> |
</body> |
</html> |
========================================================= |
<?xml version="1.0" encoding="UTF-8"?> |
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> |
<display-name>Character</display-name> |
<servlet> |
<description>This is the description of my J2EE component</description> |
<display-name>This is the display name of my J2EE component</display-name> |
<servlet-name>Character</servlet-name> |
<servlet-class>fengke.servlet.Character</servlet-class> |
</servlet> |
<servlet-mapping> |
<servlet-name>Character</servlet-name> |
<url-pattern>/Character</url-pattern> |
</servlet-mapping> |
<welcome-file-list> |
<welcome-file>index.html</welcome-file> |
<welcome-file>index.htm</welcome-file> |
<welcome-file>index.jsp</welcome-file> |
<welcome-file>default.html</welcome-file> |
<welcome-file>default.htm</welcome-file> |
<welcome-file>default.jsp</welcome-file> |
</welcome-file-list> |
<!-- |
<filter> |
<filter-name>encodingFilter</filter-name> |
<filter-class>fengke.filter.CoreFilter</filter-class> |
<init-param> |
<param-name>encoding</param-name> |
<param-value>utf-8</param-value> |
</init-param> |
</filter> |
|
<filter-mapping> |
<filter-name>encodingFilter</filter-name> |
<url-pattern>/*</url-pattern> |
</filter-mapping> |
--> |
</web-app> |
==================================================================== |
package fengke.filter; |
import java.io.IOException; |
import java.io.UnsupportedEncodingException; |
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; |
import javax.servlet.http.HttpServletRequestWrapper; |
import javax.servlet.http.HttpServletResponse; |
import javax.servlet.http.HttpSession; |
//过滤器处理表单传到servlet的乱码问题 |
public class CoreFilter implements Filter{ |
//自写一个request换掉原来的request,重写里面的getParemeter方法，可以设置编码 |
class MyRequest extends HttpServletRequestWrapper{ |
|
@Override |
public String getParameter(String param) { |
String value = null; |
try { |
//post |
super.setCharacterEncoding(encoding);//把编码转换为encoding |
value = super.getParameter(param); |
if(super.getMethod().equalsIgnoreCase("GET")){ |
if(value!=null){ |
value = new String(value.getBytes("iso8859-1"),encoding); |
} |
} |
} catch (UnsupportedEncodingException e) { |
// TODO Auto-generated catch block |
e.printStackTrace(); |
} |
return value; |
} |
public MyRequest(HttpServletRequest request) { |
super(request); |
} |
|
} |
protected String encoding=null; |
public void destroy() { //销毁 |
// TODO Auto-generated method stub |
this.encoding=null; |
} |
//对编码问题进行转换 |
public void doFilter(ServletRequest request, ServletResponse response, |
FilterChain chain) throws IOException, ServletException { |
// TODO Auto-generated method stub |
response.setContentType("text/html;charset="+encoding); |
//过滤未登录用户 |
HttpServletRequest req = (HttpServletRequest) request; |
HttpServletResponse resp = (HttpServletResponse) response; |
String path=req.getServletPath(); |
String param=req.getQueryString(); |
if(path!=null){ |
path=path+"?"+param;//全请求路径 |
} |
if(path.endsWith("myAddress")||path.endsWith("myJingDong")||path.indexOf("myShouCang")!=-1||path.endsWith("updateUser")||path.indexOf("showOrder")!=-1||path.indexOf("showValidOrder")!=-1||path.indexOf("showCancelOrder")!=-1||path.indexOf("fillOrder")!=-1){ |
HttpSession session = req.getSession(); |
String userName = (String) session.getAttribute("username"); |
if(userName == null){ |
session.setAttribute("url", path.replaceFirst("/", "")); |
System.out.println(session.getAttribute("url")); |
resp.sendRedirect("user.do?op=loginAction"); |
return; |
} |
} |
//把过滤器给下一个过滤器或资源处理器 |
chain.doFilter(new MyRequest((HttpServletRequest) request), response); |
} |
public void init(FilterConfig filterConfig) throws ServletException { |
// TODO Auto-generated method stub |
this.encoding=filterConfig.getInitParameter("encoding");//encoding在web.xml中指定 |
} |
} |
Character.zip(免费下载)[0 次下载]
