javascript通过url向jsp页面传递中文参数导致乱码解决方案

最新推荐文章于 2024-05-12 11:38:25 发布

转载最新推荐文章于 2024-05-12 11:38:25 发布 · 217 阅读

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javascript通过url向jsp页面传递中文参数乱码,一直都是从事jsp开发者比较烦心的是，于是本文介绍了一些解决方法，感兴趣的朋友可以了解下

2013-1-16 10:35:49 org.apache.tomcat.util.http.Parameters processParameters
警告: Parameters: Character decoding failed. Parameter 'id' with value '%u8BA2%u5355' has been ignored. Note that the name and value quoted here may corrupted due to the failed decoding. Use debug level logging to see the original, non-corrupted values.
Enter Servlet Get Method..
OK：
2013-1-16 10:35:49 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet suggest threw exception
java.lang.NullPointerException
at com.ont.demo.suggest.doGet(suggest.java:25)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)

解决方法：在传递参数前将中文参数进行两次编码，jsp页面获取参数后对中文参数进行一次解码，中文参数就不会变为乱码了！

参考例子：

复制代码代码如下:

<%@ page language="java" contentType="text/html; charset=UTF-8" 

pageEncoding="UTF-8"%> 

<%@ page import="java.net.*" %> 

<% 

String str0=""; 

String str1=""; 

if(request.getParameter("param0")!=null){ 

str0=request.getParameter("param0");//直接获取中文参数 

} 

try{ 

if(request.getParameter("param1")!=null){ 

str1=URLDecoder.decode(request.getParameter("param1"),"utf-8");//对中文参数进行解码 

} 

}catch(Exception e){ 

e.printStackTrace(); 

} 

%> 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 

<html> 

<head> 

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 

<script type="text/javascript"> 

var str="你好"; 

function test0(){ 

window.location="Test.jsp?param0="+str;//直接传递中文参数 

} 

function test1(){ 

window.location="Test.jsp?param1="+encodeURI(encodeURI(str));//对中文参数进行双层编码后再传递 

} 

</script> 

</head> 

<body> 

<input value=<%=str0 %>> 

<input type="button" value="乱码" onclick="test0()"><br> 

<input value=<%=str1 %>> 

<input type="button" value="正常" onclick="test1()"> 

</body> 

</html>