From 253934353738eb86d76a8c98f1878b2a2859957b Mon Sep 17 00:00:00 2001 From: Huierw <1021432804@qq.com> Date: Thu, 11 Mar 2021 19:26:03 +0800 Subject: [PATCH 01/15] =?UTF-8?q?update=20README.md.=20=E7=AC=AC=E4=B8=80?= =?UTF-8?q?=E6=AC=A1=E4=BD=9C=E4=B8=9A-=E4=BF=AE=E6=94=B9readme=E6=96=87?= =?UTF-8?q?=E4=BB=B6?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index c4520c6..f1d0c8d 100644 --- a/README.md +++ b/README.md @@ -10,7 +10,7 @@ #### 完成内容列表 1. 搭建环境 -2. xxxx +2. 完成修改 3. xxxx 4. xxxx -- Gitee From 9982a5ca33b637f92eefc35a407035f0f75cca2b Mon Sep 17 00:00:00 2001 From: lijunhui <1021432804@qq.com> Date: Fri, 19 Mar 2021 17:05:19 +0800 Subject: [PATCH 02/15] =?UTF-8?q?=E5=AE=9E=E7=8E=B0=E5=9F=BA=E7=A1=80?= =?UTF-8?q?=E7=9A=84=E7=99=BB=E5=BD=95=E5=8A=9F=E8=83=BD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/pom.xml | 54 +++++++++++++++++++ com/src/main/java/LoginServlet.java | 28 ++++++++++ com/src/main/java/Service.java | 49 +++++++++++++++++ com/src/main/java/User.java | 20 +++++++ com/src/main/webapp/WEB-INF/web.xml | 15 ++++++ com/src/main/webapp/index.jsp | 35 ++++++++++++ com/src/main/webapp/main.jsp | 20 +++++++ .../com-1.0-SNAPSHOT/META-INF/MANIFEST.MF | 5 ++ com/target/com-1.0-SNAPSHOT/WEB-INF/web.xml | 15 ++++++ com/target/com-1.0-SNAPSHOT/index.jsp | 35 ++++++++++++ com/target/com-1.0-SNAPSHOT/main.jsp | 20 +++++++ 11 files changed, 296 insertions(+) create mode 100644 com/pom.xml create mode 100644 com/src/main/java/LoginServlet.java create mode 100644 com/src/main/java/Service.java create mode 100644 com/src/main/java/User.java create mode 100644 com/src/main/webapp/WEB-INF/web.xml create mode 100644 com/src/main/webapp/index.jsp create mode 100644 com/src/main/webapp/main.jsp create mode 100644 com/target/com-1.0-SNAPSHOT/META-INF/MANIFEST.MF create mode 100644 com/target/com-1.0-SNAPSHOT/WEB-INF/web.xml create mode 100644 com/target/com-1.0-SNAPSHOT/index.jsp create mode 100644 com/target/com-1.0-SNAPSHOT/main.jsp diff --git a/com/pom.xml b/com/pom.xml new file mode 100644 index 0000000..a49a9f5 --- /dev/null +++ b/com/pom.xml @@ -0,0 +1,54 @@ + + + 4.0.0 + + com.example + com + 1.0-SNAPSHOT + com + war + + + 1.8 + 1.8 + 5.7.0 + + + + + javax + javaee-api + 8.0.1 + provided + + + org.junit.jupiter + junit-jupiter-api + ${junit.version} + test + + + org.junit.jupiter + junit-jupiter-engine + ${junit.version} + test + + + mysql + mysql-connector-java + 8.0.11 + + + + + + + org.apache.maven.plugins + maven-war-plugin + 3.3.0 + + + + \ No newline at end of file diff --git a/com/src/main/java/LoginServlet.java b/com/src/main/java/LoginServlet.java new file mode 100644 index 0000000..0e1053a --- /dev/null +++ b/com/src/main/java/LoginServlet.java @@ -0,0 +1,28 @@ +import javax.servlet.http.*; +import java.io.*; +import javax.servlet.*; + +public class LoginServlet extends HttpServlet { + + protected void doPost(HttpServletRequest request, + HttpServletResponse response) throws ServletException, IOException + { + response.setContentType("text/html;charset=gb2312"); + request.setCharacterEncoding("utf-8"); + User u = new User(); + u.setUsername(request.getParameter("username")); + u.setPassword(request.getParameter("password")); + request.setAttribute("", u); + boolean falg = Service.assertUser(u); + if(falg){ + request.getRequestDispatcher("/main.jsp").forward(request,response); + }else{ + response.sendRedirect("./index.jsp"); + } + + } + + +} + + diff --git a/com/src/main/java/Service.java b/com/src/main/java/Service.java new file mode 100644 index 0000000..e779b88 --- /dev/null +++ b/com/src/main/java/Service.java @@ -0,0 +1,49 @@ +import java.sql.*; + + +public class Service { + public static boolean assertUser(User u){ + // TODO Auto-generated method stub + boolean flag = false; + try { + + //加载驱动程序 + Class.forName("com.mysql.cj.jdbc.Driver"); + + //创建连接 + String url="jdbc:mysql://localhost:3306/javaee?serverTimezone=GMT&useSSL=false&allowPublicKeyRetrieval=true"; + String username="root"; + String pwd ="root"; + Connection conn = DriverManager.getConnection(url,username,pwd); + + //创建Statement，执行sql + Statement st=conn.createStatement(); + String sql = "select * from user where username = '"+u.getUsername()+"' "; + ResultSet rs =st.executeQuery(sql); + + if(rs.getString("password")!=u.getPassword()){ + flag = false; + }else{ + flag = true; + } + + + //关闭连接 + rs.close(); + st.close(); + conn.close(); + } catch (ClassNotFoundException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (SQLException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + + return flag; + } + + + + +} diff --git a/com/src/main/java/User.java b/com/src/main/java/User.java new file mode 100644 index 0000000..a80078e --- /dev/null +++ b/com/src/main/java/User.java @@ -0,0 +1,20 @@ +public class User { + private String username; + private String password; + + public String getUsername() { + return username; + } + + public void setUsername(String username) { + this.username = username; + } + + public String getPassword() { + return password; + } + + public void setPassword(String password) { + this.password = password; + } +} diff --git a/com/src/main/webapp/WEB-INF/web.xml b/com/src/main/webapp/WEB-INF/web.xml new file mode 100644 index 0000000..3725c59 --- /dev/null +++ b/com/src/main/webapp/WEB-INF/web.xml @@ -0,0 +1,15 @@ + + + + + LoginServlet + LoginServlet + + + LoginServlet + /loginAction + + \ No newline at end of file diff --git a/com/src/main/webapp/index.jsp b/com/src/main/webapp/index.jsp new file mode 100644 index 0000000..7edddc3 --- /dev/null +++ b/com/src/main/webapp/index.jsp @@ -0,0 +1,35 @@ +<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %> + + + + JSP - Hello World + + +

<%= "Hello World!" %> +

+
+Login JSP +
+ + + + + + + + + + +
用户名:
 +
+
密码:
+ +
+

+ + +

+
+ + + \ No newline at end of file diff --git a/com/src/main/webapp/main.jsp b/com/src/main/webapp/main.jsp new file mode 100644 index 0000000..2d4e943 --- /dev/null +++ b/com/src/main/webapp/main.jsp @@ -0,0 +1,20 @@ +<%-- + Created by IntelliJ IDEA. + User: lijunhui + Date: 3/18/2021 + Time: 11:00 AM + To change this template use File | Settings | File Templates. +--%> +<%@ page contentType="text/html;charset=UTF-8" language="java" %> + + + Main + + + + + diff --git a/com/target/com-1.0-SNAPSHOT/META-INF/MANIFEST.MF b/com/target/com-1.0-SNAPSHOT/META-INF/MANIFEST.MF new file mode 100644 index 0000000..5168ab5 --- /dev/null +++ b/com/target/com-1.0-SNAPSHOT/META-INF/MANIFEST.MF @@ -0,0 +1,5 @@ +Manifest-Version: 1.0 +Created-By: IntelliJ IDEA +Built-By: lijunhui +Build-Jdk: version 15.0.1 + diff --git a/com/target/com-1.0-SNAPSHOT/WEB-INF/web.xml b/com/target/com-1.0-SNAPSHOT/WEB-INF/web.xml new file mode 100644 index 0000000..3725c59 --- /dev/null +++ b/com/target/com-1.0-SNAPSHOT/WEB-INF/web.xml @@ -0,0 +1,15 @@ + + + + + LoginServlet + LoginServlet + + + LoginServlet + /loginAction + + \ No newline at end of file diff --git a/com/target/com-1.0-SNAPSHOT/index.jsp b/com/target/com-1.0-SNAPSHOT/index.jsp new file mode 100644 index 0000000..7edddc3 --- /dev/null +++ b/com/target/com-1.0-SNAPSHOT/index.jsp @@ -0,0 +1,35 @@ +<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %> + + + + JSP - Hello World + + +

<%= "Hello World!" %> +

+
+Login JSP +
+ + + + + + + + + + +
用户名:
 +
+
密码:
+ +
+

+ + +

+
+ + + \ No newline at end of file diff --git a/com/target/com-1.0-SNAPSHOT/main.jsp b/com/target/com-1.0-SNAPSHOT/main.jsp new file mode 100644 index 0000000..2d4e943 --- /dev/null +++ b/com/target/com-1.0-SNAPSHOT/main.jsp @@ -0,0 +1,20 @@ +<%-- + Created by IntelliJ IDEA. + User: lijunhui + Date: 3/18/2021 + Time: 11:00 AM + To change this template use File | Settings | File Templates. +--%> +<%@ page contentType="text/html;charset=UTF-8" language="java" %> + + + Main + + + + + -- Gitee From 49822bfb4714c0b5bc0f86b15feda1108b1cc23e Mon Sep 17 00:00:00 2001 From: lijunhui <1021432804@qq.com> Date: Fri, 19 Mar 2021 17:48:59 +0800 Subject: [PATCH 03/15] =?UTF-8?q?=E5=B0=9D=E8=AF=95=E6=9B=B4=E7=BB=99?= =?UTF-8?q?=E6=8F=90=E4=BA=A4?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/src/main/webapp/WEB-INF/web.xml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/com/src/main/webapp/WEB-INF/web.xml b/com/src/main/webapp/WEB-INF/web.xml index 3725c59..a7db993 100644 --- a/com/src/main/webapp/WEB-INF/web.xml +++ b/com/src/main/webapp/WEB-INF/web.xml @@ -6,7 +6,7 @@ LoginServlet - LoginServlet + javaLoginServlet LoginServlet -- Gitee From 971efce671d41b57f28b65aa5d5e99b5434a8b48 Mon Sep 17 00:00:00 2001 From: lijunhui <1021432804@qq.com> Date: Fri, 19 Mar 2021 17:56:30 +0800 Subject: [PATCH 04/15] =?UTF-8?q?=E5=B0=9D=E8=AF=95=E6=9B=B4=E7=BB=99?= =?UTF-8?q?=E6=8F=90=E4=BA=A42?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/src/main/webapp/WEB-INF/web.xml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/com/src/main/webapp/WEB-INF/web.xml b/com/src/main/webapp/WEB-INF/web.xml index a7db993..3725c59 100644 --- a/com/src/main/webapp/WEB-INF/web.xml +++ b/com/src/main/webapp/WEB-INF/web.xml @@ -6,7 +6,7 @@ LoginServlet - javaLoginServlet + LoginServlet LoginServlet -- Gitee From 09c1eeccb984548d6d3eafaad5bd2bb09b5a2bb5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=8E=E5=90=9B=E6=85=A7?= <1021432804@qq.com> Date: Sun, 21 Mar 2021 17:01:21 +0800 Subject: [PATCH 05/15] =?UTF-8?q?update=20com/src/main/java/Service.java.?= =?UTF-8?q?=20=E6=95=B0=E6=8D=AE=E5=BA=93=E6=9F=A5=E8=AF=A2=E9=82=A3?= =?UTF-8?q?=E9=87=8C=E5=A4=84=E7=90=86bug?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/src/main/java/Service.java | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/com/src/main/java/Service.java b/com/src/main/java/Service.java index e779b88..b142063 100644 --- a/com/src/main/java/Service.java +++ b/com/src/main/java/Service.java @@ -21,10 +21,12 @@ public class Service { String sql = "select * from user where username = '"+u.getUsername()+"' "; ResultSet rs =st.executeQuery(sql); - if(rs.getString("password")!=u.getPassword()){ + while(rs.next()){ + if(rs.getString("password")!=u.getPassword()){ flag = false; - }else{ + }else{ flag = true; + } } -- Gitee From 6d2b2f935aa19361319515637ec705536a7be109 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=8E=E5=90=9B=E6=85=A7?= <1021432804@qq.com> Date: Mon, 22 Mar 2021 20:03:45 +0800 Subject: [PATCH 06/15] =?UTF-8?q?update=20com/src/main/java/Service.java.?= =?UTF-8?q?=20sql=E6=9F=A5=E8=AF=A2=E5=87=BA=E6=9D=A5=E7=9A=84=E5=AD=97?= =?UTF-8?q?=E7=AC=A6=E4=B8=B2=E5=A4=84=E7=90=86=E6=9C=89=E9=97=AE=E9=A2=98?= =?UTF-8?q?=EF=BC=8C=E4=BB=8A=E5=A4=A9=E6=9B=B4=E6=94=B9=E4=BA=86=E4=B8=8B?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/src/main/java/Service.java | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/com/src/main/java/Service.java b/com/src/main/java/Service.java index b142063..2de1ecf 100644 --- a/com/src/main/java/Service.java +++ b/com/src/main/java/Service.java @@ -22,10 +22,10 @@ public class Service { ResultSet rs =st.executeQuery(sql); while(rs.next()){ - if(rs.getString("password")!=u.getPassword()){ - flag = false; + if(rs.getString("password").equals(u.getPassword())){ + flag = true; }else{ - flag = true; + flag = false; } } -- Gitee From 1c8013ab2aa076062081e2a66875487ef30d540d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=8E=E5=90=9B=E6=85=A7?= <1021432804@qq.com> Date: Mon, 22 Mar 2021 21:06:40 +0800 Subject: [PATCH 07/15] =?UTF-8?q?add=20com/src/main/java/LoginFilter.=20?= =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E8=BF=87=E6=BB=A4=E5=99=A8=E7=9A=84java?= =?UTF-8?q?=E6=96=87=E4=BB=B6?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/src/main/java/LoginFilter | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 com/src/main/java/LoginFilter diff --git a/com/src/main/java/LoginFilter b/com/src/main/java/LoginFilter new file mode 100644 index 0000000..2d540f4 --- /dev/null +++ b/com/src/main/java/LoginFilter @@ -0,0 +1,35 @@ +import java.io.IOException; +import javax.servlet.Filter; +import javax.servlet.FilterChain; +import javax.servlet.ServletException; +import javax.servlet.ServletRequest; +import javax.servlet.ServletResponse; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import javax.servlet.http.HttpServletResponseWrapper; + + +public class LoginFilter implements Filter { + + public void doFilter(ServletRequest request, + ServletResponse response, + FilterChain chain) throws IOException, ServletException { + HttpServletRequest hrequest = (HttpServletRequest)request; + HttpServletResponseWrapper wrapper = new HttpServletResponseWrapper((HttpServletResponse) response); + String user = ( String ) hrequest.getSession().getAttribute("username");//判断用户是否登录 + + if (hrequest.getRequestURI().contains("index")) { + // 对登录页面不进行过滤 + chain.doFilter(request, response); + return; + } + + if (user == null) { + wrapper.sendRedirect("index.jsp"); + return; + }else { + chain.doFilter(request, response); + return; + } + } +} -- Gitee From a0151a6cb3ebc129f820541858a6edc4670957e8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=8E=E5=90=9B=E6=85=A7?= <1021432804@qq.com> Date: Mon, 22 Mar 2021 21:08:27 +0800 Subject: [PATCH 08/15] to com/src/main/java/LoginFilter.java. --- com/src/main/java/{LoginFilter => LoginFilter.java} | 0 1 file changed, 0 insertions(+), 0 deletions(-) rename com/src/main/java/{LoginFilter => LoginFilter.java} (100%) diff --git a/com/src/main/java/LoginFilter b/com/src/main/java/LoginFilter.java similarity index 100% rename from com/src/main/java/LoginFilter rename to com/src/main/java/LoginFilter.java -- Gitee From 4078be250512e86000f14a4157ef2bcb82e5382e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=8E=E5=90=9B=E6=85=A7?= <1021432804@qq.com> Date: Mon, 22 Mar 2021 21:11:10 +0800 Subject: [PATCH 09/15] =?UTF-8?q?update=20com/src/main/webapp/WEB-INF/web.?= =?UTF-8?q?xml.=20=E5=A2=9E=E5=8A=A0web.xml=20=E9=87=8C=E7=9A=84filter?= =?UTF-8?q?=E5=8A=9F=E8=83=BD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/src/main/webapp/WEB-INF/web.xml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/com/src/main/webapp/WEB-INF/web.xml b/com/src/main/webapp/WEB-INF/web.xml index 3725c59..e54c898 100644 --- a/com/src/main/webapp/WEB-INF/web.xml +++ b/com/src/main/webapp/WEB-INF/web.xml @@ -12,4 +12,12 @@ LoginServlet /loginAction + + SessionFilter + LoginFilter + + + SessionFilter + /* + \ No newline at end of file -- Gitee From a8b908c5c333cefc4172bb8aabbaf51938dde7f2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=8E=E5=90=9B=E6=85=A7?= <1021432804@qq.com> Date: Sat, 27 Mar 2021 15:43:59 +0800 Subject: [PATCH 10/15] =?UTF-8?q?update=20com/src/main/java/LoginFilter.ja?= =?UTF-8?q?va.=20=E5=9B=A0=E4=B8=BA=E5=8E=9F=E6=9D=A5=E7=9A=84filter?= =?UTF-8?q?=E5=92=8C=E6=96=B0=E4=BD=9C=E4=B8=9A=E7=9A=84Listener=E5=8F=91?= =?UTF-8?q?=E7=94=9F=E9=97=AE=E9=A2=98=EF=BC=8C=E6=89=80=E4=BB=A5=E4=BF=AE?= =?UTF-8?q?=E6=94=B9=E4=BA=86=E4=B9=8B=E5=89=8D=E7=9A=84filter?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/src/main/java/LoginFilter.java | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/com/src/main/java/LoginFilter.java b/com/src/main/java/LoginFilter.java index 2d540f4..20be22f 100644 --- a/com/src/main/java/LoginFilter.java +++ b/com/src/main/java/LoginFilter.java @@ -8,7 +8,6 @@ import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpServletResponseWrapper; - public class LoginFilter implements Filter { public void doFilter(ServletRequest request, @@ -16,20 +15,25 @@ public class LoginFilter implements Filter { FilterChain chain) throws IOException, ServletException { HttpServletRequest hrequest = (HttpServletRequest)request; HttpServletResponseWrapper wrapper = new HttpServletResponseWrapper((HttpServletResponse) response); - String user = ( String ) hrequest.getSession().getAttribute("username");//判断用户是否登录 + String user = null; + if(hrequest.getSession(false) != null){ + user = ( String ) hrequest.getSession(false).getAttribute("username"); + } if (hrequest.getRequestURI().contains("index")) { // 对登录页面不进行过滤 chain.doFilter(request, response); return; } - if (user == null) { + //判断用户是否登录 + if (user == null & !(hrequest.getRequestURI().contains("login"))){ wrapper.sendRedirect("index.jsp"); return; }else { chain.doFilter(request, response); return; } + } } -- Gitee From 048b7fbeb258e1880857af085de89bb85c7f3796 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=8E=E5=90=9B=E6=85=A7?= <1021432804@qq.com> Date: Sat, 27 Mar 2021 15:45:35 +0800 Subject: [PATCH 11/15] =?UTF-8?q?add=20com/src/main/java/OnlineCont.java.?= =?UTF-8?q?=20=E6=B7=BB=E5=8A=A0=E5=9C=A8=E7=BA=BF=E4=BA=BA=E6=95=B0?= =?UTF-8?q?=E7=BB=9F=E8=AE=A1=E7=9A=84Listener?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/src/main/java/OnlineCont.java | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 com/src/main/java/OnlineCont.java diff --git a/com/src/main/java/OnlineCont.java b/com/src/main/java/OnlineCont.java new file mode 100644 index 0000000..3430234 --- /dev/null +++ b/com/src/main/java/OnlineCont.java @@ -0,0 +1,23 @@ +import javax.servlet.http.HttpSessionEvent; +import javax.servlet.http.HttpSessionListener; + +public class OnlineCont implements HttpSessionListener { + static int count=0; + static HttpSessionEvent se; + + @Override + public void sessionCreated(HttpSessionEvent se) { + System.out.println("into sessionCreated"); + count++; + se.getSession().getServletContext().setAttribute("count", count); + + } + + @Override + public synchronized void sessionDestroyed(HttpSessionEvent se) { + count--; + se.getSession().getServletContext().setAttribute("count", count); + } + + +} \ No newline at end of file -- Gitee From e5142d3dd25b5d0ce019da678b6b87f65ca5eef4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=8E=E5=90=9B=E6=85=A7?= <1021432804@qq.com> Date: Sat, 27 Mar 2021 15:48:17 +0800 Subject: [PATCH 12/15] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E7=94=A8=E6=88=B7?= =?UTF-8?q?=E5=9C=A8=E7=BA=BF=E7=BB=9F=E8=AE=A1=E5=8A=9F=E8=83=BD=EF=BC=8C?= =?UTF-8?q?=E5=BD=93=E7=94=A8=E6=88=B7=E7=99=BB=E5=BD=95=E6=88=90=E5=8A=9F?= =?UTF-8?q?=E5=90=8E=EF=BC=8C=E5=88=9B=E5=BB=BAsession=20=E6=AD=A4?= =?UTF-8?q?=E5=A4=84=E8=AE=BE=E8=AE=A1=E4=B8=BA=E5=BD=93=E7=94=A8=E6=88=B7?= =?UTF-8?q?=E5=AF=86=E7=A0=81=E8=BE=93=E5=85=A5=E6=88=90=E5=8A=9F=E6=97=B6?= =?UTF-8?q?=E5=86=8D=E5=88=9B=E5=BB=BAsession?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/src/main/java/LoginServlet.java | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/com/src/main/java/LoginServlet.java b/com/src/main/java/LoginServlet.java index 0e1053a..dcb0281 100644 --- a/com/src/main/java/LoginServlet.java +++ b/com/src/main/java/LoginServlet.java @@ -1,20 +1,28 @@ +import javax.servlet.annotation.WebServlet; import javax.servlet.http.*; import java.io.*; import javax.servlet.*; +@WebServlet("/loginAction") public class LoginServlet extends HttpServlet { protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + response.setContentType("text/html;charset=gb2312"); request.setCharacterEncoding("utf-8"); User u = new User(); u.setUsername(request.getParameter("username")); u.setPassword(request.getParameter("password")); - request.setAttribute("", u); - boolean falg = Service.assertUser(u); - if(falg){ + request.setAttribute("user", u); + + boolean flag = Service.assertUser(u); + + if(flag){ + // 判断用户登录成功，创建session + request.getSession(); + request.setAttribute("count",OnlineCont.count); request.getRequestDispatcher("/main.jsp").forward(request,response); }else{ response.sendRedirect("./index.jsp"); @@ -22,6 +30,13 @@ public class LoginServlet extends HttpServlet { } + @Override + protected void doGet(HttpServletRequest request, HttpServletResponse response) + throws ServletException, IOException { + request.getSession().invalidate(); + response.sendRedirect("./index.jsp"); + } +} } -- Gitee From f64e365abdd43a520b421fabdb39f89de5750a0a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=8E=E5=90=9B=E6=85=A7?= <1021432804@qq.com> Date: Sat, 27 Mar 2021 15:49:48 +0800 Subject: [PATCH 13/15] =?UTF-8?q?=E6=9B=B4=E6=94=B9=20page=20session=3D"fa?= =?UTF-8?q?lse"=20session=3D"false"=EF=BC=8C=E6=8E=A7=E5=88=B6=E5=9C=A8?= =?UTF-8?q?=E9=A1=B5=E9=9D=A2=E6=89=93=E5=BC=80=E6=97=B6=E5=80=99=E4=B8=8D?= =?UTF-8?q?=E5=88=9B=E5=BB=BAsession?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/src/main/webapp/index.jsp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/com/src/main/webapp/index.jsp b/com/src/main/webapp/index.jsp index 7edddc3..974e2d8 100644 --- a/com/src/main/webapp/index.jsp +++ b/com/src/main/webapp/index.jsp @@ -1,4 +1,4 @@ -<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %> +<%@ page session="false" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %> @@ -7,8 +7,10 @@

<%= "Hello World!" %>

+<% + HttpSession s = request.getSession(false); +%>
-Login JSP
-- Gitee From 7d6393860a373f4845c3b50c24f826838efc395e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=8E=E5=90=9B=E6=85=A7?= <1021432804@qq.com> Date: Sat, 27 Mar 2021 15:51:29 +0800 Subject: [PATCH 14/15] =?UTF-8?q?page=20session=3D"false"=20add=20?= =?UTF-8?q?=E9=80=80=E5=87=BA=E5=8A=9F=E8=83=BD=20=E5=A2=9E=E5=8A=A0?= =?UTF-8?q?=E9=80=80=E5=87=BA=E5=8A=9F=E8=83=BD=E7=9A=84=E9=A1=B5=E9=9D=A2?= =?UTF-8?q?=E8=AE=BE=E8=AE=A1?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/src/main/webapp/main.jsp | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/com/src/main/webapp/main.jsp b/com/src/main/webapp/main.jsp index 2d4e943..a465add 100644 --- a/com/src/main/webapp/main.jsp +++ b/com/src/main/webapp/main.jsp @@ -5,14 +5,21 @@ Time: 11:00 AM To change this template use File | Settings | File Templates. --%> -<%@ page contentType="text/html;charset=UTF-8" language="java" %> +<%@ page session="false" contentType="text/html;charset=UTF-8" language="java" %> + + Main -- Gitee From 4a54a051ed7c28e5b07269282d2e8077c54ef05f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=8E=E5=90=9B=E6=85=A7?= <1021432804@qq.com> Date: Sat, 27 Mar 2021 15:54:33 +0800 Subject: [PATCH 15/15] =?UTF-8?q?=E5=A2=9E=E5=8A=A0web.xml=20=E4=B8=ADList?= =?UTF-8?q?ener=E7=9A=84=E8=AE=BE=E8=AE=A1=20=20=20=20=20=20=20?= =?UTF-8?q?=20=20=20OnlineCont=20=20=20=E5=8A=A0listener?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- com/src/main/webapp/WEB-INF/web.xml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/com/src/main/webapp/WEB-INF/web.xml b/com/src/main/webapp/WEB-INF/web.xml index e54c898..c2d2cf4 100644 --- a/com/src/main/webapp/WEB-INF/web.xml +++ b/com/src/main/webapp/WEB-INF/web.xml @@ -20,4 +20,7 @@ SessionFilter /* + + OnlineCont + \ No newline at end of file -- Gitee