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java.sql.SQLException:列索引超出范围,8>;6._Java_Mysql_Sql - Fatal编程技术网

java.sql.SQLException:列索引超出范围,8>;6.

java.sql.SQLException:列索引超出范围,8>;6.,java,mysql,sql,Java,Mysql,Sql,当我尝试检索整个记录并从数据库中显示它时。这是一个错误 java.sql.SQLException: Column Index out of range, 8 > 6. 我想不出这一点。请帮忙 JAVA代码 public ArrayList viewAllDrivers() { ArrayList allDrivers=new ArrayList(); try { String sql= "select * from adddr

当我尝试检索整个记录并从数据库中显示它时。这是一个错误

java.sql.SQLException: Column Index out of range, 8 > 6. 
我想不出这一点。请帮忙

JAVA代码

public ArrayList viewAllDrivers() {
        ArrayList allDrivers=new ArrayList();

        try {
            String sql= "select * from adddriver ORDER BY dname";
            rs =DBConnection.executeQuery(sql);
            while(rs.next()) {
                ArrayList one = new ArrayList();
                one.add(rs.getInt(1));
                one.add(rs.getString(2));
                one.add(rs.getString(6));
                one.add(rs.getString(8));
                one.add(rs.getString(9));
                one.add(rs.getString(10));
                one.add(rs.getInt(11));
                allDrivers.add(one);
            }

        }
        catch (Exception ex) {
            System.out.println (ex);
        }
        return allDrivers;
    }
我试图显示结果的页面

<%
SearchDAO searchDAO = new SearchDAO();
ArrayList all = searchDAO.viewAllDrivers();
int size = all.size();
%>


<table width="95%" align="center"  style="border:#D22929 solid 2px;padding:10px;" border="0">
  <tr>
    <th bgcolor="#D22929" scope="col"><span class="style10">Driver Name </span></th>
    <th bgcolor="#D22929" scope="col"><span class="style10">Address</span></th>
    <th bgcolor="#D22929" scope="col"><span class="style10">City</span></th>
    <th bgcolor="#D22929" scope="col"><span class="style10">Contact</span></th>
    <th bgcolor="#D22929" scope="col"><span class="style10">Country&nbsp;&nbsp;</span></th>
    <th bgcolor="#D22929" scope="col"><span class="style10">Ation</span></th>
  </tr>

<%
for(int i=0;i<size;i++){
ArrayList one=(ArrayList)all.get(i);
%>
<tr style="height:30px; padding:4px;">
    <td><div align="center"><%=(String)one.get(1)%></div></td>
    <td><div align="center"><%=(String)one.get(2)%></div></td>
    <td><div align="center"><%=(String)one.get(3)%></div></td>
    <td><div align="center"><%=(String)one.get(4)%>&nbsp;</div></td>
    <td><div align="center"><%=(String)one.get(5)%>&nbsp;</div></td>

</tr>
<% } %>

驱动程序名称
地址
城市
接触
国家
电离

此错误表示您的
adddriver
只有6列,因此8是无效的列索引

这意味着所有这些语句都有无效的索引:

            one.add(rs.getString(8));
            one.add(rs.getString(9));
            one.add(rs.getString(10));
            one.add(rs.getInt(11));

也许您的DB表没有包含您认为它所包含的内容。

最好明确地命名您正在检索的列,这样您就不会面临这样的问题

公共阵列列表viewAllDrivers(){ ArrayList allDrivers=新的ArrayList()


您将超出列计数,因为您遇到此异常

这是非常自我解释的。您正在访问超过表大小的列索引。请仔细检查表。检查数据库中表中的列数。此外,请使用servlet。jsp文件中不应包含任何Java代码。
ADDDRIVER
表只有6列,但您希望得到第8列。您的表
ADDDRIVER
有多少列?
    try {
        String sql= "select city,address,... from adddriver ORDER BY dname";
        rs =DBConnection.executeQuery(sql);
        while(rs.next()) {
            ArrayList one = new ArrayList();
            one.add(rs.getInt(1));
            one.add(rs.getString(2));
            one.add(rs.getString(6));
            one.add(rs.getString(8));
            one.add(rs.getString(9));
            one.add(rs.getString(10));
            one.add(rs.getInt(11));
            allDrivers.add(one);
        }

    }
    catch (Exception ex) {
        System.out.println (ex);
    }
    return allDrivers;
}