1.doget 方式
response.setContentType("text/html;charset=utf-8");
String str = request.getParameter("name");
String name=new String(str.getBytes("ISO-8859-1"),"UTF-8");
2.dopost方式
//解决中文乱码
response.setContentType("text/html;charset=utf-8");
//请求解决乱码
request.setCharacterEncoding("utf-8");
//响应解决乱码
response.setCharacterEncoding("utf-8");