Question

ext 表单提交或ajax请求返回的信息中文乱码，后台response和前台页面的编码都设置为uft-8了

提交到后台中的中文正常，返回的信息中有中文就乱码，我在前后台都设置了response.setCharacterEncoding("UTF-8");前台的jsp的编码也是utf-8，页面属性编码也是utf-8

Answer 1

我用拦截器解决了这个问题
web.xml里面的配置

<filter>
<filter-name>SubmitFilter</filter-name>
<filter-class>common.SubmitFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>SubmitFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
拦截器文件里面的代码:
package common;

import java.io.IOException;

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.HttpServletResponse;

public class SubmitFilter implements Filter{

private FilterConfig filterConfig = null;
@Override
public void destroy() {

}

@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
if(this.filterConfig == null){
return;
}
HttpServletRequest request = (HttpServletRequest)servletRequest;
HttpServletResponse response = (HttpServletResponse)servletResponse;
// HttpSession session = request.getSession();
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html; charset=UTF-8");
filterChain.doFilter(servletRequest, servletResponse);
}

@Override
public void init(FilterConfig arg0) throws ServletException {
this.filterConfig = arg0;

}

}
这样就解决了问题，我试过了，可以的。

Answer 2

表单提交到后台有乱码解决：
ajax提交的时候用‘data=’+encodeURIComponent('测试')；后台request的时候用String data=new String(request.getParameter("data").getBytes("iso-8859-1"), "UTF-8");

你说返回到前台的信息中文乱码，我想请问你，你怎么接收来自后台的返回信息的呢？