How To Call User Input From JSP File Into Java File
I'm writing a program using JSP. I have a .java file containing a few methods, and I have a .jsp file which contains the following, in addition to a few javascript methods:
Solution 1:
Use a servlet as your .java file,you can write your methods in this servlet class
public class MyServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String name = request.getParameter("nameOne");
System.out.println("<form action='Myservlet.do' method='get'>");
System.out.println("nameOne is " + name);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String name = request.getParameter("nameThree");
System.out.println("<form action='Myservlet.do' method='post'>");
System.out.println("nameThree is " + name);
}
}
and add this to your web.xml in WebContent/WEB-INF :
<servlet>
<!--whatever-->
<servlet-name>MyServlet</servlet-name>
<!--the position of your own servlet-->
<servlet-class>com.stackoverflowquizz.servlet.MyServlet</servlet-class>
</servlet>
<servlet-mapping>
<!--the same as the one in <servlet>-->
<servlet-name>MyServlet</servlet-name>
<!--the action or the url that you can access this servlet-->
<url-pattern>/Myservlet.do</url-pattern>
</servlet-mapping>
use <form action = "xx" method="get/post"> <input type="submit"> in .jsp file to pass args to .java (servlet file)
<form action="Myservlet.do" method="get">
<input type="text" name="nameOne" value="Enter a Name" onClick="if(this.value == 'Enter a Name'){this.value = '';}" />
<input type="text" name="nameTwo" value="Enter a Name" onClick="if(this.value == 'Enter a Name'){this.value = '';}" />
<input type="submit">
</form>
<form action="Myservlet.do" method="post">
<input type="text" name="nameThree" value="Enter a Name" onClick="if(this.value == 'Enter a Name'){this.value = '';}" />
<input type="submit">
</form>
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