js、URL传递含有中文参数时的乱码问题解决

1、使用代码完成字符集修改 

方法（一）： 
html页面： 

function testone() { 

   var url =  "testone_test.do?expr="+你好; 

   location  = encodeuri(url); 

} 

后台java代码： 

string expr = new string(request.getparameter("expr").getbytes("iso-8859-1"),"utf-8"); 

方法（二）： 

html页面： 

function testone() { 
   var url =  "testone_test.do?expr="+你好; 
   location = encodeuri(encodeuri(url)); 
} 

后台java代码： 
string expr = java.net.urldecoder.decode(lrequest.getparameter("expr") , "utf-8"); 
2、修改tomcat中的配置参数 

在tomcat下面找到server.xml 
<connector port="8080" maxthreads="150" minsparethreads="25" maxsparethreads="75" uriencoding="gbk"> 
根据需要修改为utf-8等字符集。 
3、在web工程中添加spring.jar，使用spring的characterencodingfilter 

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    <filter>  
     <filter-name>encoding</filter-name>  
     <filter-class>org.springframework.web.filter.characterencodingfilter</filter-class>  
     <init-param>  
      <param-name>encoding</param-name>  
      <param-value>utf-8</param-value>  
     </init-param>  
    </filter>  
    <filter-mapping>  
     <filter-name>encoding</filter-name>  
     <url-pattern>/*</url-pattern>  
    </filter-mapping>  



org.springframework.web.filter.characterencodingfilter 中的转码部分： 

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    protected void dofilterinternal(  
      httpservletrequest request, httpservletresponse response, filterchain filterchain)  
      throws servletexception, ioexception {  
      
     if (this.encoding != null && (this.forceencoding || request.getcharacterencoding() == null)) {  
      request.setcharacterencoding(this.encoding);  
      if (this.forceencoding && responsesetcharacterencodingavailable) {  
       response.setcharacterencoding(this.encoding);  
      }  
     }  
     filterchain.dofilter(request, response);  
    }