拦截器 response 响应到浏览器乱码，解决方式

拦截器 response 响应到浏览器乱码，解决方式：

@Override
 public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
 	//解决响应乱码
    response.setCharacterEncoding("UTF-8");
    response.setHeader("Content-Type", "text/html;charset=UTF-8");
    response.sendError(500, "错误");
    ....
 }   

借鉴于 https://forestqqqq.iteye.com/blog/2270252