commit 72276ea357b4b69fd8150a3913b4ac7d58865e2f
Author: yanxiaonuo <745726298@qq.com>
Date:   Sun Dec 15 15:15:46 2019 +0800

    文件上传

diff --git a/.classpath b/.classpath
new file mode 100644
index 0000000..a13ef6c
--- /dev/null
+++ b/.classpath
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
+		<attributes>
+			<attribute name="owner.project.facets" value="java"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.jst.server.core.container/org.eclipse.jst.server.tomcat.runtimeTarget/Apache Tomcat v8.5">
+		<attributes>
+			<attribute name="owner.project.facets" value="jst.web"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.web.container"/>
+	<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.module.container"/>
+	<classpathentry kind="lib" path="WebContent/WEB-INF/lib/ojdbc14.jar"/>
+	<classpathentry kind="output" path="build/classes"/>
+</classpath>
diff --git a/.project b/.project
new file mode 100644
index 0000000..d616d29
--- /dev/null
+++ b/.project
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>CheckCode</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.wst.common.project.facet.core.builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.wst.validation.validationbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jem.workbench.JavaEMFNature</nature>
+		<nature>org.eclipse.wst.common.modulecore.ModuleCoreNature</nature>
+		<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.wst.jsdt.core.jsNature</nature>
+	</natures>
+</projectDescription>
diff --git a/.settings/.jsdtscope b/.settings/.jsdtscope
new file mode 100644
index 0000000..92e666d
--- /dev/null
+++ b/.settings/.jsdtscope
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry excluding="**/bower_components/*|**/node_modules/*|**/*.min.js" kind="src" path="WebContent"/>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.WebProject">
+		<attributes>
+			<attribute name="hide" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.baseBrowserLibrary"/>
+	<classpathentry kind="output" path=""/>
+</classpath>
diff --git a/.settings/org.eclipse.jdt.core.prefs b/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 0000000..87b7a7a
--- /dev/null
+++ b/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,13 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.release=disabled
+org.eclipse.jdt.core.compiler.source=1.8
diff --git a/.settings/org.eclipse.wst.common.component b/.settings/org.eclipse.wst.common.component
new file mode 100644
index 0000000..9229f1c
--- /dev/null
+++ b/.settings/org.eclipse.wst.common.component
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?><project-modules id="moduleCoreId" project-version="1.5.0">
+    <wb-module deploy-name="CheckCode">
+        <wb-resource deploy-path="/" source-path="/WebContent" tag="defaultRootSource"/>
+        <wb-resource deploy-path="/WEB-INF/classes" source-path="/src"/>
+        <property name="context-root" value="CheckCode"/>
+        <property name="java-output-path" value="/CheckCode/build/classes"/>
+    </wb-module>
+</project-modules>
diff --git a/.settings/org.eclipse.wst.common.project.facet.core.xml b/.settings/org.eclipse.wst.common.project.facet.core.xml
new file mode 100644
index 0000000..fe8c108
--- /dev/null
+++ b/.settings/org.eclipse.wst.common.project.facet.core.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<faceted-project>
+  <runtime name="Apache Tomcat v8.5"/>
+  <fixed facet="java"/>
+  <fixed facet="jst.web"/>
+  <fixed facet="wst.jsdt.web"/>
+  <installed facet="java" version="1.8"/>
+  <installed facet="jst.web" version="3.0"/>
+  <installed facet="wst.jsdt.web" version="1.0"/>
+</faceted-project>
diff --git a/.settings/org.eclipse.wst.jsdt.ui.superType.container b/.settings/org.eclipse.wst.jsdt.ui.superType.container
new file mode 100644
index 0000000..3bd5d0a
--- /dev/null
+++ b/.settings/org.eclipse.wst.jsdt.ui.superType.container
@@ -0,0 +1 @@
+org.eclipse.wst.jsdt.launching.baseBrowserLibrary
\ No newline at end of file
diff --git a/.settings/org.eclipse.wst.jsdt.ui.superType.name b/.settings/org.eclipse.wst.jsdt.ui.superType.name
new file mode 100644
index 0000000..05bd71b
--- /dev/null
+++ b/.settings/org.eclipse.wst.jsdt.ui.superType.name
@@ -0,0 +1 @@
+Window
\ No newline at end of file
diff --git a/WebContent/LoginFailure.jsp b/WebContent/LoginFailure.jsp
new file mode 100644
index 0000000..14640e9
--- /dev/null
+++ b/WebContent/LoginFailure.jsp
@@ -0,0 +1,15 @@
+<%@ page language="java" contentType="text/html; charset=UTF-8"
+    pageEncoding="UTF-8"%>
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="UTF-8">
+<title>Insert title here</title>
+</head>
+<body>
+登陆失败！请重新登录
+      <form action="login.jsp">
+         <input type="submit" value="返回"><br/>
+      </form>
+</body>
+</html>
\ No newline at end of file
diff --git a/WebContent/META-INF/MANIFEST.MF b/WebContent/META-INF/MANIFEST.MF
new file mode 100644
index 0000000..254272e
--- /dev/null
+++ b/WebContent/META-INF/MANIFEST.MF
@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+Class-Path: 
+
diff --git a/WebContent/WEB-INF/lib/ojdbc14.jar b/WebContent/WEB-INF/lib/ojdbc14.jar
new file mode 100644
index 0000000..f41cf1a
Binary files /dev/null and b/WebContent/WEB-INF/lib/ojdbc14.jar differ
diff --git a/WebContent/WEB-INF/web.xml b/WebContent/WEB-INF/web.xml
new file mode 100644
index 0000000..8565fc9
--- /dev/null
+++ b/WebContent/WEB-INF/web.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
+  <display-name>CheckCode</display-name>
+  <welcome-file-list>
+    <welcome-file>login.jsp</welcome-file>
+    <welcome-file>index.html</welcome-file>
+    <welcome-file>index.htm</welcome-file>
+    <welcome-file>index.jsp</welcome-file>
+    <welcome-file>default.html</welcome-file>
+    <welcome-file>default.htm</welcome-file>
+    <welcome-file>default.jsp</welcome-file>
+  </welcome-file-list>
+</web-app>
\ No newline at end of file
diff --git a/WebContent/checkcode.jsp b/WebContent/checkcode.jsp
new file mode 100644
index 0000000..1026b2a
--- /dev/null
+++ b/WebContent/checkcode.jsp
@@ -0,0 +1,44 @@
+<%@ page language="java" contentType="text/html; charset=UTF-8"
+    pageEncoding="UTF-8"%>
+<!DOCTYPE html>
+<html>
+<head>
+<script type="text/javascript" src="jquery-3.4.1.min.js"></script>
+<script type="text/javascript">
+
+  function reloadCheckImg(){
+	  //alert("hahhhh");
+	  $("img").attr("src","img.jsp?t="+(new Date().getTime()));
+  }
+
+  $(document).ready(function(){
+	  //alert("hahhhh");
+	  $("#checkcodeId").blur(function(){
+		  //alert("hahhhh");
+		  var checkcode=$("#checkcodeId").val();
+		  //校验：input输入验证法发送到servlet，服务端中的真实值和输入值对比，返回结果
+		  $.post(
+				  "CheckCodeServlet",
+				  "checkcode="+checkcode,
+				  function(result){
+					  var resultHtml= $("<img src='"+result+"' height='15' width='15px'/>");
+					  $("#tip").html(resultHtml);
+				  }
+				  
+				  
+				  );
+	  });
+  });
+</script>
+
+<title>验证码</title>
+</head>
+<body>
+      验证码：
+      <input type="text" name="checkcode" id="checkcodeId" size=4/>
+      <!-- 验证码 -->
+      <a href="javascript:reloadCheckImg();"><img src="img.jsp" /></a>
+      
+      <span id="tip"> </span>
+</body>
+</html>
\ No newline at end of file
diff --git a/WebContent/images/right.jpg b/WebContent/images/right.jpg
new file mode 100644
index 0000000..72dd11e
Binary files /dev/null and b/WebContent/images/right.jpg differ
diff --git a/WebContent/images/wrong.jpg b/WebContent/images/wrong.jpg
new file mode 100644
index 0000000..abc62b1
Binary files /dev/null and b/WebContent/images/wrong.jpg differ
diff --git a/WebContent/img.jsp b/WebContent/img.jsp
new file mode 100644
index 0000000..5909445
--- /dev/null
+++ b/WebContent/img.jsp
@@ -0,0 +1,70 @@
+<%@page import="java.awt.image.BufferedImage"%>
+<%@page import="java.awt.*"%>
+<%@page import="java.util.*"%>
+<%@page import="javax.imageio.ImageIO" %>
+<%@ page language="java" contentType="image/jpeg; charset=UTF-8"
+    pageEncoding="UTF-8"%>
+<%!
+    //产生随机颜色
+    public Color getColor(){
+	    Random ran=new Random();//random和math.random区别
+	    int r=ran.nextInt(256);
+	    int g=ran.nextInt(256);
+	    int b=ran.nextInt(256);
+	    return new Color(r,g,b);
+    }
+//产生验证码的值
+    public String getNum(){
+	//0~8999  -> 1000~9999
+	    int ran=(int)(Math.random()*9000)+1000;
+	    return String.valueOf(ran);
+    }
+
+
+
+%>
+
+<%
+
+    //禁止缓存 防止验证码过期
+    response.setHeader("Pragma","no-cache");
+    response.setHeader("Cache-Control","no-cache");
+    response.setHeader("Expires","0");
+    //绘制验证码图片
+    BufferedImage image=new BufferedImage(80,30,BufferedImage.TYPE_INT_RGB);
+    Graphics graphics=image.getGraphics();
+    graphics.fillRect(0,0,80,30);
+    
+  //绘制验证码
+    graphics.setFont(new Font("seif",Font.BOLD,20));
+    graphics.setColor(Color.black);
+    String checkcode=getNum();
+    StringBuffer sb=new StringBuffer();
+    
+    for(int i=0;i<checkcode.length();i++){
+	    sb.append(checkcode.charAt(i)+" ");//获取验证码的每一位数字1 2 3 4... 
+    }
+//绘制验证码并调整位置
+	    graphics.drawString(sb.toString(), 15, 20);
+	    
+//绘制干扰线条
+    for(int i=0;i<60;i++){
+    	Random ran=new Random();
+    	
+    	int xBegin=ran.nextInt(80);
+    	int yBegin=ran.nextInt(30);
+    	int xEnd=ran.nextInt(xBegin+10);
+    	int yEnd=ran.nextInt(yBegin+10);
+    	graphics.setColor(getColor());
+    	graphics.drawLine(xBegin, yBegin, xEnd, yEnd);
+    	}
+  
+        //验证码的真实值用于服务器后台验证
+    	session.setAttribute("CHECKCODE", checkcode);
+    	//产生图片
+    	ImageIO.write(image,"jpeg",response.getOutputStream());
+    	out.clear();
+    	out=pageContext.pushBody();
+    	//将image加入input src中<input type="iamge" src="..."/>	
+
+%>
\ No newline at end of file
diff --git a/WebContent/jquery-3.4.1.min.js b/WebContent/jquery-3.4.1.min.js
new file mode 100644
index 0000000..a1c07fd
--- /dev/null
+++ b/WebContent/jquery-3.4.1.min.js
@@ -0,0 +1,2 @@
+/*! jQuery v3.4.1 | (c) JS Foundation and other contributors | jquery.org/license */
+!function(e,t){"use strict";"object"==typeof module&&"object"==typeof module.exports?module.exports=e.document?t(e,!0):function(e){if(!e.document)throw new Error("jQuery requires a window with a document");return t(e)}:t(e)}("undefined"!=typeof window?window:this,function(C,e){"use strict";var t=[],E=C.document,r=Object.getPrototypeOf,s=t.slice,g=t.concat,u=t.push,i=t.indexOf,n={},o=n.toString,v=n.hasOwnProperty,a=v.toString,l=a.call(Object),y={},m=function(e){return"function"==typeof e&&"number"!=typeof e.nodeType},x=function(e){return null!=e&&e===e.window},c={type:!0,src:!0,nonce:!0,noModule:!0};function b(e,t,n){var r,i,o=(n=n||E).createElement("script");if(o.text=e,t)for(r in c)(i=t[r]||t.getAttribute&&t.getAttribute(r))&&o.setAttribute(r,i);n.head.appendChild(o).parentNode.removeChild(o)}function w(e){return null==e?e+"":"object"==typeof e||"function"==typeof e?n[o.call(e)]||"object":typeof e}var f="3.4.1",k=function(e,t){return new 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diff --git a/WebContent/login.jsp b/WebContent/login.jsp
new file mode 100644
index 0000000..c1b0ebc
--- /dev/null
+++ b/WebContent/login.jsp
@@ -0,0 +1,37 @@
+<%@ page language="java" contentType="text/html; charset=UTF-8"
+    pageEncoding="UTF-8"%>
+<!DOCTYPE html>
+<html>
+<head>
+<script type="text/javascript" src="jquery-3.4.1.min.js"></script>
+<script type="text/javascript">
+
+  function reloadCheckImg(){
+	  //alert("hahhhh");
+	  $("img").attr("src","img.jsp?t="+(new Date().getTime()));
+  }
+
+ 
+</script> 
+
+
+<title>验证码</title>
+</head>
+<body>
+  <form action="CheckCodeServlet" method="post">
+      用户名: <input type="text" name="uname"><br/>
+      密码: <input type="text" name="upwd"><br/>
+ <!--  -->     
+       验证码：
+      <input type="text" name="checkcode" id="checkcodeId" size=4/>
+      <!-- 验证码 -->
+      <a href="javascript:reloadCheckImg();"><img src="img.jsp" /></a>
+      <span id="tip"> </span><br/>
+            <input type="submit" value="登录">
+      
+  </form>
+
+
+     
+</body>
+</html>
\ No newline at end of file
diff --git a/WebContent/welcome.jsp b/WebContent/welcome.jsp
new file mode 100644
index 0000000..21d5a24
--- /dev/null
+++ b/WebContent/welcome.jsp
@@ -0,0 +1,12 @@
+<%@ page language="java" contentType="text/html; charset=UTF-8"
+    pageEncoding="UTF-8"%>
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="UTF-8">
+<title>Insert title here</title>
+</head>
+<body>
+      登陆成功!
+</body>
+</html>
\ No newline at end of file
diff --git a/build/classes/com/ytdlc/dao/LoginDao.class b/build/classes/com/ytdlc/dao/LoginDao.class
new file mode 100644
index 0000000..eb3ee17
Binary files /dev/null and b/build/classes/com/ytdlc/dao/LoginDao.class differ
diff --git a/build/classes/com/ytdlc/entity/Login.class b/build/classes/com/ytdlc/entity/Login.class
new file mode 100644
index 0000000..f5d3c33
Binary files /dev/null and b/build/classes/com/ytdlc/entity/Login.class differ
diff --git a/build/classes/com/ytdlc/servlet/CheckCodeServlet.class b/build/classes/com/ytdlc/servlet/CheckCodeServlet.class
new file mode 100644
index 0000000..5c717e3
Binary files /dev/null and b/build/classes/com/ytdlc/servlet/CheckCodeServlet.class differ
diff --git a/src/com/ytdlc/dao/LoginDao.java b/src/com/ytdlc/dao/LoginDao.java
new file mode 100644
index 0000000..36d1101
--- /dev/null
+++ b/src/com/ytdlc/dao/LoginDao.java
@@ -0,0 +1,64 @@
+package com.ytdlc.dao;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import com.ytdlc.entity.Login;
+
+//模型层用于处理登录
+public class LoginDao {
+	/**
+	private final String URL="jdbc:oracle:thin:@127.0.0.1:1522:ORCL";
+	private final String USERNAME="scott";
+	private final String PASSWORD="tiger";
+	**/
+	
+	public static int login(Login login) {
+		//boolean flag=false;
+		Connection connection=null;
+		PreparedStatement pstmt=null;
+		ResultSet rs=null;
+		int result=-1;
+		try {
+			Class.forName("oracle.jdbc.OracleDriver");
+			connection=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1522:ORCL","scott","tiger");
+			String sql="select count(*) from login where uname=? and upwd=?";
+			pstmt=connection.prepareStatement(sql);
+			pstmt.setString(1,login.getUname());
+			pstmt.setString(2,login.getUpwd());
+			rs=pstmt.executeQuery();
+			if(rs.next()) {
+				result=rs.getInt(1);
+			}
+			if(result>0) {
+				return 1;
+			}else {
+				return 0;
+			}
+			
+		} catch (ClassNotFoundException e) {
+			e.printStackTrace();
+			return -1;//系统异常登陆失败
+		} catch (SQLException e) {
+			e.printStackTrace();
+			return -1;
+		}catch (Exception e) {
+			e.printStackTrace();
+			return -1;
+		}finally {
+				try {
+					if(rs!=null) rs.close();
+					if(pstmt!=null) pstmt.close();
+					if(connection!=null) connection.close();
+				} catch (SQLException e) {
+					e.printStackTrace();
+				}catch (Exception e) {
+					e.printStackTrace();
+				}
+		}
+	}
+
+}
diff --git a/src/com/ytdlc/entity/Login.java b/src/com/ytdlc/entity/Login.java
new file mode 100644
index 0000000..1218e2f
--- /dev/null
+++ b/src/com/ytdlc/entity/Login.java
@@ -0,0 +1,46 @@
+package com.ytdlc.entity;
+
+public class Login {
+	private  int id;
+	private String uname;
+	private String upwd;
+	
+	public Login() {
+		
+	}
+	
+	public Login(String uname, String upwd) {
+		this.uname = uname;
+		this.upwd = upwd;
+	}
+	
+	public Login(int id, String uname, String upwd) {
+		super();
+		this.id = id;
+		this.uname = uname;
+		this.upwd = upwd;
+	}
+	public int getId() {
+		return id;
+	}
+	public void setId(int id) {
+		this.id = id;
+	}
+	public String getUname() {
+		return uname;
+	}
+	public void setUname(String uname) {
+		this.uname = uname;
+	}
+	public String getUpwd() {
+		return upwd;
+	}
+	public void setUpwd(String upwd) {
+		this.upwd = upwd;
+	}
+	
+	
+	
+	
+
+}
diff --git a/src/com/ytdlc/servlet/CheckCodeServlet.java b/src/com/ytdlc/servlet/CheckCodeServlet.java
new file mode 100644
index 0000000..84ef941
--- /dev/null
+++ b/src/com/ytdlc/servlet/CheckCodeServlet.java
@@ -0,0 +1,62 @@
+package com.ytdlc.servlet;
+
+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;
+
+import com.ytdlc.dao.LoginDao;
+import com.ytdlc.entity.Login;
+
+//控制器层
+@WebServlet("/CheckCodeServlet")
+public class CheckCodeServlet extends HttpServlet {
+	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		//login
+		        //获取客户端验证码
+				String CheckCodeClient=request.getParameter("checkcode");
+				//获取记录的真实验证码值
+				String CheckCodeServer=(String) request.getSession().getAttribute("CHECKCODE");
+				request.setCharacterEncoding("utf-8");
+				String name=request.getParameter("uname");
+				String pwd=request.getParameter("upwd");
+				Login login=new Login(name,pwd);
+				//LoginDao logindao=new LoginDao();
+				int result=LoginDao.login(login);
+				if(result>0) {
+					if(CheckCodeServer.equals(CheckCodeClient)) {
+						response.sendRedirect("welcome.jsp");
+					}else {
+						response.sendRedirect("LoginFailure.jsp");
+					}
+				}else {
+					response.sendRedirect("LoginFailure.jsp");
+				}
+/**
+		String resultTip="images/wrong.jpg";
+		//获取客户端验证码
+		String CheckCodeClient=request.getParameter("checkcode");
+		//获取记录的真实验证码值
+		String CheckCodeServer=(String) request.getSession().getAttribute("CHECKCODE");
+		if(CheckCodeServer.equals(CheckCodeClient)) {
+			resultTip="images/right.jpg";
+		}
+		response.setContentType("text/html; charset=UTF-8");
+		PrintWriter writer=response.getWriter();//获取输出流
+		writer.write(resultTip);
+		writer.flush();//刷新
+		writer.close();
+***/
+	}
+
+	
+	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		doGet(request, response);
+		
+	}
+
+}