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);
}
参考：
url：http://blog.163.com/wkyuyang_001/blog/static/108021228200971352434158/
Spring源文件
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