JS/JQUERY（16）——JS中URL传递含有中文字符乱码问题

1.使用代码完成字符集的修改

方法（1）：

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（2）：

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tomacat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

<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：

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);  
}