HTTP 状态 405 - 此 URL 不支持 HTTP 方法 GET - 我没有使用任何框架 - HTTP Status 405 - HTTP method GET is not supported by this URL

我得到

HTTP状态405-此URL错误不支持HTTP方法GET在我的应用程序中

请看这三份文件，告诉我我出了什么问题。

URL:

http://localhost:8080/ccrf/admin/ComplaintServlet.do?txt_frm_date=01-2015年4月；txt_to_date=2015年4月30日&select_dept=1&btn_get_data=

ComplaintServlet.java

@WebServlet("/ComplaintServlet")
public class ComplaintServlet extends HttpServlet {
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String frm = request.getParameter("from").trim();
        String to = request.getParameter("to").trim();
        String c = request.getParameter("dept");    
        int dept = 0;
        dept = Integer.parseInt(c);
        response.setContentType("text/plain");
        PrintWriter pw = response.getWriter();
        try{
            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
            Connection con = DriverManager.getConnection("jdbc:odbc:DSN_CCRF","sa","developer1");
            PreparedStatement ps = con.prepareStatement("SELECT * FROM Complaints WHERE ComplaintDept=? AND CONVERT(VARCHAR(10),ComplaintDate,105) BETWEEN ? AND ?");
            ps.setInt(1,dept);
            ps.setString(2,frm);
            ps.setString(3,to);
            ResultSet rs = ps.executeQuery();
            while(rs.next()){
                pw.println("<table class='table table-bordered'><thead><tr><th>Title</th></tr></thead><tbody><tr><td>asd</td></tr></tbody></table>");
            }
        }catch(ClassNotFoundException e){
            pw.println("Class Not Found. "+e);
        }catch(Exception e){
            pw.println("Failed. "+e);
        }
    }
}

ViewComplaints.jsp

 <%@ page import="servlets.DBConnection,java.sql.*,java.util.*,java.io.*" %>
<!DOCTYPE html>
<html>
    <head>
        <title>Consumer Complaints Redressal Forum</title>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <link href='../css/bootstrap.min.css' rel="stylesheet">
        <link href='../css/bootstrap-theme.min.css' rel="stylesheet">
        <link href='../css/style.css' rel="stylesheet">
    </head>
<body>
<script src="../js/jquery.js"></script>
<script src='../js/bootstrap.min.js'></script>
<!-- datepicker-->
<script src="../js/jquery-ui.js"></script>
<link rel="stylesheet" href="../css/jquery-ui.css" />
<!-- end datepicker-->
<script type="text/javascript">
    $(function() {
        $('#txt_frm_date').datepicker({ dateFormat: "dd-mm-yy" }).val();
        $('#txt_to_date').datepicker({ dateFormat: "dd-mm-yy" }).val();
    });
/*  $(document).ready(function() {
    $('#btn_get_data').click(function(e){
        e.preventDefault();
        $.ajax({
            url : '../admin/com.do',
            data : {
                from : $('#txt_frm_date').val(),
                to : $('#txt_to_date').val(),
                dept : $('#select_dept').val()
            },
            success : function(response) {
                //$('.op').html(response);
                alert(response+'as');
            }
        });
    });
});*/
</script>
    <div class='container'>
        <%@include file="header.jsp"%>
        <div class='main'>
            <div class="panel panel-primary">
               <div class="panel-body">
                    <% if(session.getAttribute("USER_NAME") == null || session.getAttribute("USER_NAME") == "" || session.getAttribute("USER_TYPE") == "U"){%>
                        You don't have permission to access this page..!
                    <%}else{%>
                    <div class="panel panel-primary">
                        <div class="panel-heading">
                            <a href='index.jsp' class='h pull-left'>Home</a> &nbsp;&nbsp; You are logged in as <strong><%=session.getAttribute("USER_NAME")%></strong> (<a class='logout' href='logout.jsp'>Log out</a>)
                        </div>
                        <div class="panel-body">
                            <form class="form-inline" role="form" name='frm-get-data' id='frm-get-data' method='GET' action='../admin/ComplaintServlet.do'>
                                <div class="form-group"> 
                                    <input type="text" class="form-control" id="txt_frm_date" name='txt_frm_date' placeholder='From Date:'>
                                </div>
                                <div class="form-group">
                                    <input class="form-control" type="text" id="txt_to_date" name='txt_to_date' placeholder='To Date:'>
                                </div>
                                <div class="form-group"> 
                                    <select class="form-control" name='select_dept' id='select_dept'>
                                        <%
                                        response.setContentType("text/html");
                                        PrintWriter pw = response.getWriter();
                                        try{
                                            DBConnection conObj = new DBConnection();
                                            Connection conn = conObj.DbCon();
                                            PreparedStatement ps = conn.prepareStatement("SELECT * FROM Departments ORDER BY DeptID");                      
                                            ResultSet rs = ps.executeQuery();
                                        %>
                                            <option value=0>ALL</option>
                                        <%
                                            while(rs.next()){
                                                //pw.println(rs.getString("DeptName"));
                                        %>  
                                            <option value=<%=rs.getString("DeptID")%>><%=rs.getString("DeptName")%></option>    
                                        <%
                                            }
                                        }catch(ClassNotFoundException e){
                                            pw.println("Class Not Found. "+e);
                                        }catch(Exception e){
                                            pw.println("Failed to retrieve departments. "+e);
                                        }
                                        %>
                                    </select>
                                </div>
                                <button class="btn btn-primary" name='btn_get_data' id='btn_get_data'>Get it!</button>
                            </form>
                            <div class='op'></div>
                        </div>
                    </div>  
                    <%}%>
               </div>
            </div>
        </div>
    </div>
</body>
</html>

web.xml

<web-app version="2.4" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/j2ee" xsi:schemalocation="http:/java.sun.com/dtd/web-app_2_3.dtd">
<servlet>
    <servlet-name>ComplaintServlet</servlet-name>
    <servlet-class>servlets.ComplaintServlet</servlet-class>
</servlet>  
<servlet-mapping>
    <servlet-name>ComplaintServlet</servlet-name>
    <url-pattern>/admin/ComplaintServlet.do</url-pattern>
</servlet-mapping>
<servlet>
    <servlet-name>DBConnection</servlet-name>
    <servlet-class>servlets.DBConnection</servlet-class>
</servlet>  
<servlet-mapping>
    <servlet-name>DBConnection</servlet-name>
    <url-pattern>/DBConnection</url-pattern>
</servlet-mapping>

在/ccrf/虚拟目录下服务应用程序会导致web.xml和@WebServlet中定义的URL模式与实际URL不匹配。你有两个选择：

要么在根目录中提供您的应用程序，然后像http://localhost:8080/admin/ComplaintServlet.do?txt_frm_date=01-04-2015&txt_to_‌date=30-04-2015&select_dept=1&btn_get_data=一样访问它
或者更改web.xml中的URL模式，使其包含类似<url-pattern>/ccrf/admin/ComplaintServlet.do</url-pattern>的/ccrf/前缀

HTTP 状态 405 - 此 URL 不支持 HTTP 方法 GET - 我没有使用任何框架

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