使用表单的POST方法实例

getTest.html

	
	


	

		用户名：

		密码：
		
	

HelloForm.java

package request;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet("/HelloForm")
public class HelloForm extends HttpServlet {
	public HelloForm() {
		super();
	}
	
	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		resp.setContentType("text/html;charset=UTF-8");
		PrintWriter out = resp.getWriter();
		// 解决中文无法显示问题
		String user = new String(req.getParameter("user").getBytes("iso-8859-1"), "utf-8");
		String password = req.getParameter("password");
		out.println("用户名为：" + user + "
");
		out.println("密码为：" + password);
	}
	
	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		doGet(req, resp);
	}
}

使用GET方式提交表单数据时，直接写String user = req.getParameter("user");也不会出现乱码。。。。