Question

在tomcat 8.5上执行查询时遇到了一些麻烦。它是一个名为index.jsp的jsp文件，我想要做的就是在tomcat服务器上运行sql查询。这是我的代码：

<%@ page import="java.io.IOException" %>
<%@ page import="java.sql.*" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
    <title>Title</title>
</head>
<body>
<%
    try{
        Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
        Connection connection = 
DriverManager.getConnection("jdbc:sqlserver://127.0.0.1; 
databaseName=veritabanı;" +
                " username=user; password=psw;");
        Statement statement = 
connection.createStatement(ResultSet.TYPE_FORWARD_ONLY, 
ResultSet.CONCUR_UPDATABLE);
        ResultSet resultSet = statement.executeQuery("select * from tablo 
where id = 10");
        while(resultSet.next()){
            out.println(resultSet.getArray(0) + " " + 
resultSet.getArray(1));
        }
    }catch(IOException e){
        e.printStackTrace();
    }catch(SQLException e){
        e.printStackTrace();
    }catch(ClassNotFoundException e){
        e.printStackTrace();
    }
%>
</body>
</html>

我认为问题与ResultSet有关。所以我找到了另一种创建语句的方法：

createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_UPDATABLE);

createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);

但这些并没有奏效。这是我得到的错误：

com.microsoft.sqlserver.jdbc.SQLServerException: This operation is not supported.
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:191)
at com.microsoft.sqlserver.jdbc.SQLServerResultSet.NotImplemented(SQLServerResultSet.java:765)
at com.microsoft.sqlserver.jdbc.SQLServerResultSet.getArray(SQLServerResultSet.java:2762)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:130)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:443)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)

我在哪里做错了？

在tomcat 8.5

0 个答案: