post article前进行验证码验证，以确保不是机器所为。

src/main/java/com/javaBeans/Controller.java

@@ -11,6 +11,7 @@
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import javax.swing.*;
 
 /**
  * Servlet implementation class com.javaBeans.Controller
@@ -297,6 +298,16 @@ else if(page.equals("comments_dislike"))
 
 		if(page.equals("post-article"))
 		{
+			String code = (String) request.getSession().getAttribute("verifyCodeValue");
+			String textCode = request.getParameter("verifyCode");
+			if (!code.equals(textCode)) {
+				request.getSession().setAttribute("info","验证码输入不正确！");
+				try {
+					request.getRequestDispatcher("NewFile.jsp").forward(request, response);
+				} catch (ServletException | IOException e) {
+					e.printStackTrace();
+				}
+			}
 			String subject = request.getParameter("subject");
 			String email = request.getParameter("email");
 

src/main/java/com/javaBeans/UploadServlet.java

@@ -15,6 +15,7 @@
 import javax.servlet.http.HttpServletResponse;
 import javax.servlet.http.HttpSession;
 import javax.servlet.http.Part;
+import javax.swing.*;
 
 
 import com.database.DB;
@@ -49,6 +50,7 @@ protected void doGet(HttpServletRequest request, HttpServletResponse response) t
 
 
     protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
         Part filePart = request.getPart("file");
         response.setContentType("text/plain;charset=UTF-8");
         String author = request.getParameter("author");