在jsp頁面顯示mysql代碼輸出

我想計算給定日期的總時間。值將從retrieve.jsp頁面插入，並在cal.jsp頁面上顯示結果。我知道在JSP中放置SQL代碼或任何與數據庫相關的代碼是一個壞主意。但我想嘗試這種方式，請幫助。在jsp頁面顯示mysql代碼輸出

retrieve.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%> 

<%@page import="com.eis.bean.Provider"%> 
<%@page import="com.eis.bean.ConnectionProvider"%> 
<%@page import="java.sql.*" %> 
<%@page import="com.eis.servlet.RetrieveServlet"%> 

<html> 
<head> 
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
    <title>JSP Page</title> 
</head> 
<body> 
    <h4>Enter Employee ID and the dates</h4> 
    <form name="retrieve form" action="cal.jsp" method="POST"> 
     <table border="0"> 

      <tbody> 
       <tr> 
        <td>Employee ID</td> 
        <td><input type="text" name="Emp_id" required="required"/></td> 
       </tr> 
       <tr> 
        <td>From Date:</td> 
        <td><input type="date" name="From" value="yyyy/MM/dd" required="required"/></td> 
       </tr> 
       <tr> 
        <td>To Date:</td> 
        <td><input type="date" name="To" value="yyyy/MM/dd" required="required"/></td> 
       </tr> 
      </tbody> 
     </table> 
     <input type="reset" value="Clear" name="clear" /> 
     <input type="submit" value="Submit" name="submit" /> 
    </form> 
</body> 
</html>

cal.jsp

<!DOCTYPE html> 
<%@page import="com.eis.bean.Provider"%> 
<%@page import="com.eis.bean.ConnectionProvider"%> 
<%@page import="java.sql.*" %> 
<%@page import="com.eis.servlet.RetrieveServlet"%> 
<%@page contentType="text/html" pageEncoding="UTF-8"%> 
<jsp:include page="retrieve.jsp"/> 
<% 
String empid = request.getParameter("Emp_id"); 
String from = request.getParameter("From"); 
String to = request.getParameter("To"); 
Connection conn= null; 
PreparedStatement ps1= null; 
ResultSet rs1= null; 

    conn = ConnectionProvider.getConn(); 

    ps1 = conn.prepareStatement("SELECT SEC_TO_TIME(SUM(TIME_TO_SEC(`total`))) AS Total FROM timsheetdb.logintable WHERE Emp_id=? AND LoginDate BETWEEN ? AND ?;"); 

    ps1.setString(1, empid); 
    ps1.setString(2, from); 
    ps1.setString(3, to); 

    rs1=ps1.executeQuery(); 
     String Total=null; 
     while (rs1.next()) 
     { 
      Total = rs1.getString("Total"); 
      out.println("Total is : " + Total + "<br>"); 
     } 

%>

錯誤，我得到：

org.apache.jasper.JasperException: An exception occurred processing JSP page /cal.jsp at line 28 

25:   String Total=null; 
26:    while (rs1.next()) 
27:    { 
28:    Total = rs1.getString("Total"); 
29:    out.println("Total is : " + Total + "<br>"); 
30:    } 
31:    


Stacktrace: 
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:574) 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:461) 
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) 
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 

root cause 

javax.servlet.ServletException: java.sql.SQLException: Illegal hour value '27' for java.sql.Time type in value '27:00:00. 
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:909) 
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:838) 
org.apache.jsp.cal_jsp._jspService(cal_jsp.java:143) 
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438) 
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) 
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 

root cause 

java.sql.SQLException: Illegal hour value '27' for java.sql.Time type in value '27:00:00. 
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:998) 
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:937) 
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926) 
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:872) 
com.mysql.jdbc.TimeUtil.fastTimeCreate(TimeUtil.java:286) 
com.mysql.jdbc.ResultSetImpl.fastTimeCreate(ResultSetImpl.java:973) 
com.mysql.jdbc.ResultSetImpl.getTimeFromString(ResultSetImpl.java:5558) 
com.mysql.jdbc.ResultSetImpl.getStringInternal(ResultSetImpl.java:5319) 
com.mysql.jdbc.ResultSetImpl.getString(ResultSetImpl.java:5173) 
com.mysql.jdbc.ResultSetImpl.getString(ResultSetImpl.java:5212) 
org.apache.jsp.cal_jsp._jspService(cal_jsp.java:125) 
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438) 
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) 
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

我認爲它會造成這個錯誤東陽java.sql.SQLException中的：對於值爲'27：00：00的java.sql.Time類型，非法小時值'27'。我我的數據庫中，我設置總計列時間戳類型。

我在SQL低於其做工精細嘗試是圖像

來源

2015-10-20 dpk12

您的查詢不正確。首先嚐試通過直接調用數據庫來獲取查詢。 –

@PrinceManiGupta感謝您的快速回復我試圖在數據庫中工作我已經添加圖像請檢查 – dpk12

@PrinceManiGupta，我真的很感謝你在這個論壇上的王子。我希望你能記住我。你的博客也很好。我檢查了它。在那裏添加一個聯繫我的頁面。 –

嘗試請轉換時間戳字符串轉換函數。例如;

SELECT CAST((SEC_TO_TIME(SUM(TIME_TO_SEC(`total`)))) AS char) AS Total FROM timeornek.logintable WHERE user=50 AND total BETWEEN '2015-10-13 00:00:00' AND '2015-10-25 00:00:00'

來源

2015-10-20 10:17:40

非常感謝！有效！！ :) – dpk12

在jsp頁面顯示mysql代碼輸出

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