Servlet 获取参数中文乱码问题解决

Servlet doGet doPost 中 获取参数 以及中文验证码读取乱码

摘自本文

仅本小白学习记录用，侵删

form的提交方式为 method=“Post” 时…

// 当form的提交方式为 method="post" 时...
public void doPost(HttpServletRequest request, HttpServletResponse response) throws javax.servlet.ServletException, IOException {
        //在此处加入以下这条语句
        request.setCharacterEncoding("utf-8");
        
        String email = request.getParameter("email");
        String password = request.getParameter("password");
        String repassword = request.getParameter("repassword");
        String number = request.getParameter("number");
        String username = request.getParameter("username");
        String sex = request.getParameter("inlineRadioOptions");
        String phonenum = request.getParameter("phonenum");
        String birthday = request.getParameter("birthday");
        String inputCode = request.getParameter("inputCode");
        String randomCode = (String)request.getSession().getAttribute("changecode");

当form的提交方式为 method=“Get” 时…

// 当form的提交方式为 method="Get" 时
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws javax.servlet.ServletException, IOException {
        // 使用以下语句单行转换编码
        String username = new String (request.getParameter("username").getBytes("iso-8859-1"),"utf-8");