Question

我有一个名为＆＃34; myDB＆＃34;在我的服务选项卡中的数据库下的JavaDB中。我创建了一个表名＆＃34; RESULTS_TEST＆＃34;我在其中使用命令行工具插入了一些数据。我已经为所述数据库创建了一个JDBC连接池和一个JDBC资源，当我从Domain Admin中测试连接时，我得到了一个肯定的ping控制台。

问题是，当我运行波纹管脚本来提取并显示三列时，我得到了错误：＆＃34;表/视图＆＃39; RESULTS_TEST＆＃39;不存在。＆＃34;

这是我的代码（我遵循本教程：https://www.mkyong.com/jsf2/jsf-2-0-jdbc-integration-example/）：

的index.xhtml

<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://xmlns.jcp.org/jsf/html"
      xmlns:f="http://xmlns.jcp.org/jsf/core">
    <h:head>
        <title>Facelet Title</title>
    </h:head>
    <h:body>
        <h1>JSF 2.0 + JDBC Example</h1>

        <h:dataTable value="#{runner.getRunnerList()}" var="c"
                styleClass="order-table"
                headerClass="order-table-header"
                rowClasses="order-table-odd-row,order-table-even-row"
            >
            <h:column>
                <f:facet name="header">
                    First Name
                </f:facet>
                    #{c.fname}
            </h:column>
            <h:column>
                <f:facet name="header">
                    Last Name
                </f:facet>
                    #{c.lname}
            </h:column>
            <h:column>
                <f:facet name="header">
                    Time
                </f:facet>
                    #{c.time}
            </h:column>
        </h:dataTable>
    </h:body>
</html>

Results.java

package honolulu.marathon;

import java.io.Serializable;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.Resource;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.sql.DataSource;

@ManagedBean(name="runner")
@SessionScoped
public class Results implements Serializable{
    //resource injection
    @Resource(name="    \n" +
"jdbc/myDB")
    private DataSource ds;
    //if resource injection is not support, you still can get it manually.
    //connect to DB and get runner list
    public List<Runner> getRunnerList() throws SQLException{
            if(ds==null)
                    throw new SQLException("Can't get data source");
            //get database connection
            Connection con = ds.getConnection();
            if(con==null)
                    throw new SQLException("Can't get database connection");
            PreparedStatement ps 
                    = con.prepareStatement(
                       "SELECT FNAME, LNAME, TIME FROM RESULTS_TEST"); 
            //get runner data from database
            ResultSet result =  ps.executeQuery();
            List<Runner> list = new ArrayList<>();
            while(result.next()){
                    Runner runner = new Runner();
                    runner.setFname(result.getString("fname"));
                    runner.setLname(result.getString("lname"));
                    runner.setTime(result.getString("time"));
                    //store all data into a List
                    list.add(runner);
            }
            return list;
    }
}

Runner.java

package honolulu.marathon;
public class Runner {
    public String fname;
    public String lname;
        public String time;

    public String getFname() {
        return fname;
    }

    public void setFname(String fname) {
        this.fname = fname;
    }

    public String getLname() {
        return lname;
    }

    public void setLname(String lname) {
        this.lname = lname;
    }

    public String getTime() {
        return time;
    }

    public void setTime(String time) {
        this.time = time;
    }

}

表格/视图＆＃39; TABLE_NAME＆＃39;不存在。连接到javaDB时

0 个答案: