<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> <h3>登录页面</h3> <form action="/day3/login" method="POST"> 账号: <input type="text" name="username"/><br/> 密码: <input type="text" name="password"/><br/> <input type="submit" value="朕要登录"/> </form> </body> </html>
解决了中文乱码问题
package per.mjn._06_encoding;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
// 接收和处理登陆的信息
@WebServlet("/login")
public class LoginServlet extends HttpServlet{
private static final long serialVersionUID = 1L;
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
// System.out.println("LoginServlet.service()");
// 对于POST请求, 可以设置请求的编码
req.setCharacterEncoding("UTF-8");
String username = req.getParameter("username");
// // 1. 按照ISO-8859-1把乱码恢复成二进制形式
// byte[] data = username.getBytes("ISO-8859-1");
// // 2. 再把二进制形式的数据使用UTF-8重新编码
// username = new String(data, "UTF-8");
String password = req.getParameter("password");
System.out.println(username + ", " + password);
}
}