java如何在欢迎文件列表之外映射包中的servlet
我对映射servlet感到困惑。实际上我有两个文件索引。webcontent中的jsp和另一个文件Ihome。webcontent的“Sales/Ihome.jsp”中的jsp。当我运行服务器并选择“Sales/Ihome.jsp”作为欢迎文件并在文本框中键入“s”时，我能够显示如下所示的数据
但是当我选择“index.jsp”作为欢迎文件，然后单击sales并单击“Ihome.jsp”时，我在文本框中键入了一封信，它并没有显示上面显示的数据。那么，如何映射servlet，以便在不将“Sales/Ihome.jsp”放入欢迎文件列表的情况下获取数据。我把代码贴在下面
网络。xml
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>SearchController</servlet-name>
<servlet-class>com.controller.Controller</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>SearchController</servlet-name>
<url-pattern>/SearchController</url-pattern>
</servlet-mapping>
我回家了。jsp
<html:html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Invoicing Page</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.10.2.js"></script>
<script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
<link rel="stylesheet" href="/resources/demos/style.css">
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script type="text/javascript">
$(document).ready(function() {
$(function() {
$("#search").autocomplete({
source : function(request, response) {
$.ajax({
url : "SearchController",
type : "POST",
data : {
term : request.term
},
dataType : "json",
success : function(data) {
response(data);
}
});
},
select: function( event, ui ) {
var name = ui.item.value;
document.location.href ="index1.jsp?name="+name;
// Your code
return false;
}
});
});
});
</script>
<input type="text" id="search" name="search" />
控制器。爪哇
package com.controller;
import java.io.IOException;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.model.DataDao;
import com.google.gson.Gson;
public class Controller extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("application/json");
try {
String term = request.getParameter("term");
System.out.println("Data from ajax call " + term);
DataDao dataDao = new DataDao();
ArrayList<String> list = dataDao.getFrameWork(term);
String searchList = new Gson().toJson(list);
response.getWriter().write(searchList);
} catch (Exception e) {
e.printStackTrace();
}
}
}
数据道。爪哇
package com.model;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
public class DataDao {
private Connection connection = null;
public DataDao() throws Exception {
Class.forName("com.mysql.jdbc.Driver");
// set the url, username and password for the databse
connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/marketing_database","root","root");
}
public ArrayList<String> getFrameWork(String frameWork) {
ArrayList<String> list = new ArrayList<String>();
PreparedStatement ps = null;
String data;
try {
ps = connection
.prepareStatement("SELECT * FROM marketing_database.lead WHERE Company_Name LIKE ?");
ps.setString(1, frameWork + "%");
ResultSet rs = ps.executeQuery();
while (rs.next()) {
data = rs.getString("Company_Name");
list.add(data);
}
} catch (Exception e) {
System.out.println(e.getMessage());
}
return list;
}
}
索引。jsp
<%@ page import="java.io.*"%>
<%@ page import="javax.mail.internet.*"%>
<%@ page import="javax.mail.*"%>
<%@ page import="java.util.*"%>
<%@ page import ="javax.activation.*"%>
<%@ page import="java.sql.*"%>
<%@taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<%@taglib uri="http://java.sun.com/jstl/sql" prefix="sql" %>
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@taglib prefix="bean" uri="/WEB-INF/struts-bean.tld" %>
<%@taglib prefix="html" uri="/WEB-INF/struts-html.tld" %>
<html:html>
<head>
<title>
<bean:message key="welcome.title" />
</title>
<%
response.setHeader("Pragma", "no-cache");
response.setHeader("Cache-Control", "no-store");
response.setHeader("Expires", "0");//this to take out cache.
response.setDateHeader("Expires", -1);
%>
<link href="style.css" rel="stylesheet" type="text/css" />
<link rel="shortcut icon" type="image/x-icon" href="image/favicon.ico">
<link rel="shortcut icon" type="image/x-icon" href="/SalesPropeller/image/favicon.ico"> </head>
<body>
<div id="divContainer">
<div id="divBanner"><img src="image/Banner-final.JPG" width="1000" height="150"/>
</div>
<hr />
<div id="divBody">
<div id="divRegister">
<img src="image/lead.JPG" /><br/>
<img src="image/PURCHASE.jpg"/><br/>
<img src="image/sale.jpg"/><br/>
<img src="image/customer.jpg"/><br/>
<img src="image/attendance.jpg"/><br/>
<img src="image/payroll.jpg"/><br/>
</div>
<div id="divLogin" style="width: 435px; height: 230px; margin: 130px 550px" >
<div id="divText"><bean:message key="form.title.login"/></div>
<html:form action="/login" method="post">
<table cellspacing="0px" cellpadding="10px">
<tr>
<td><bean:message key="form.email"/></td>
<td><html:text property="email"/></td>
<td><html:errors property="loginemail"/></td>
</tr>
<tr>
<td><bean:message key="form.password"/></td>
<td><html:password property="password"/></td>
<td><html:errors property="loginpassword"/></td>
</tr>
<tr>
<td></td>
<%
Object errorLogin = request.getAttribute("errorLogin");
if(errorLogin == "1"){
String error1 = "Login Failed, The email and password you entered don't match.";
%>
<td><font color="red"><%= error1%></font></td>
<%
}
%>
<td><html:submit value="Login" style="width:70px;height:25px;"/></td>
</tr>
</table>
</html:form>
<!-- <div id="divNotMember">Not a Member.??</div> -->
<!-- <div id="divHighlight"><a href="register.jsp">Register</a></div> -->
</div>
</div>
</body>
目录结构
当我在文本框中输入时，我就变成这样了
# 1 楼答案
只需在jsp页面所在的文件夹中放置所需的文件，就可以很好地工作