吴裕雄--天生自然JAVA开发JSP-Servlet学习笔记:servlet获取表单请求参数并在客户端显示

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import java.io.IOException;
import java.io.PrintStream;
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;

/**
 *
 * @author Administrator
 */
@WebServlet(name = "firstServlet", urlPatterns = {"/FirstServlet"})
public class FirstServlet extends HttpServlet {

    /**
     *
     * @param request
     * @param response
     * @throws ServletException
     * @throws IOException
     */
    @Override
    protected void service(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        // 设置解码方式
        request.setCharacterEncoding("UTF-8");
        response.setContentType("text/html;charset=UTF-8");
        // 获取name的请求参数值
        String name = request.getParameter("name");
        // 获取gender的请求参数值
        String gender = request.getParameter("gender");
        // 获取color的请求参数值
        String[] color = request.getParameterValues("color");
        // 获取country的请求参数值
        String national = request.getParameter("country");
        // 获取页面输出流
        PrintStream out = new PrintStream(response.getOutputStream());
        //输出HTML页面标签
        out.println("<html>");
        out.println("<head>");
        out.println("<title>Servlet测试</title>");
        out.println("</head>");
        out.println("<body>");
        // 输出请求参数的值:name
        out.println("您的名字:" + name + "<hr/>");
        // 输出请求参数的值:gender
        out.println("您的性别:" + gender + "<hr/>");
        // 输出请求参数的值:color
        out.println("您喜欢的颜色:");
        for (String c : color) {
            out.println(c + " ");
        }
        out.println("<hr/>");
        out.println("您喜欢的颜色:");
        // 输出请求参数的值:national
        out.println("您来自的国家:" + national + "<hr/>");
        out.println("</body>");
        out.println("</html>");
    }

}
原文地址:https://www.cnblogs.com/tszr/p/12683813.html