Question

的index.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
       <title>JSP Page</title>
   </head>
   <body>
        <form action="Plagarism">

       Enter the first input <textarea name="File1" rows="5" cols="10">
       </textarea><br>
       Enter the second input<textarea name="File2" rows="5" cols="10">
       </textarea><br>
      <input type="submit" value="Check Plagarism" name="btn"/>
      </form>
     </body>
     </html>

Plagiarism.java

 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("/Plagarism")

  public class Plagarism extends HttpServlet 
  {

protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/html;charset=UTF-8");
    PrintWriter out = response.getWriter();

        out.println("<!DOCTYPE html>");
        out.println("<html>");
        out.println("<head>");
        out.println("<title>Servlet Plagarism</title>");            
        out.println("</head>");
        out.println("<body>");

        String s1 = request.getParameter("File1");
        String s2 = request.getParameter("File2");


        String [] words = s1.split(" "); 
        String [] words2 = s2.split(" "); 

        int counter=0;

        for (int i = 0; i < words.length-1; i++) { 

            for (int j = 0; j < words2.length-1; j++) { 

            if(words[i].equals(words2[j])) {
              {
                    counter++;
                    System.out.println(words[i]);
                }


            }

        }





        /*
        if(s1.replaceAll("\\s+","").equalsIgnoreCase(s2.replaceAll("\\s+",""))) 
            out.println("Plagiarism found");
        else
            out.println("Plagiarism not found");
        */

        if(counter>0) {
            out.println("Plag found");
        } 
        else {
            out.println("plag not found");
        }

        counter=0;

      //  out.println("Comparing the 2 files......");
       // out.println("The result of the 2 files is ....");

        /*
        if (fileOne.equals(fileTwo)) {
            out.println("Plagiarism detected. Cheaters!!!!");
        } else {
            out.println("No plagiarism detected");
        }
        */



        out.println("</body>");
        out.println("</html>"); }

// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    processRequest(request, response);
}

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    processRequest(request, response);
}

    @Override
public String getServletInfo() {
    return "Short description";
}// </editor-fold>

}

这是检查从浏览器输入的2个句子中是否有常用单词的程序。代码无法正常工作，并且显示未找到所有输入的抄袭。请告知我此代码中出现了什么问题。输入格式正确，但仍无效。

代码是Java和JSP。

Answer 1

您遇到的问题是，for循环会遗漏最后一个字，因为您只会循环到i < words.length - 1。那应该是i < words.length：

String[] words = "test me".split(" ");
String[] words2 = "you test".split(" ");

int counter = 0;

for (int i = 0; i < words.length; i++) {
    for (int j = 0; j < words2.length; j++) {
        if (words[i].equalsIgnoreCase(words2[j])) {
            counter++;
            System.out.println(words[i]); // prints "test"
        }
    }
}

System.out.println(counter); // prints "1"

或者，您可以使用较新的foreach构造来避免这些问题：

for (String word : words) {
    /* ... */
}

此外，替换所有空白区域似乎毫无意义，除非您期望输入中的制表符或回车符。在这种情况下，在调用split()时可能会更好地补偿这一点。

JSP输入字符串数组

1 个答案: