MySQL java IndexOutOfBoundsException

Question

我在显示我的数据库内容时遇到了问题，我遇到了这个错误：

org.apache.jasper.JasperException: java.lang.IndexOutOfBoundsException: Index: 2, Size: 2

有人可以帮我解决这个问题吗？我有另一个在我的 JSP 页面中有效的查询，但这个特定的查询似乎有例外：

select epi.firstName, epi.lastName, esi.license
from `employee-personal-information` epi
join`employee-safeguard-information` esi
    on epi.employeeID = esi.employeeID 
join oic oic
    on esi.employeeID = oic.oicID;

这是我的 DAO 代码：

public ArrayList<Employee> viewOIC() {
    ArrayList<Employee> newEmployee = new ArrayList<Employee>();

    try {
        DBConnectionFactory myFactory = DBConnectionFactory.getInstance();
        Connection conn = myFactory.getConnection();
        PreparedStatement pstmt = conn.prepareStatement("select epi.firstName, epi.lastName, esi.license\n" + "from `employee-personal-information` epi join`employee-safeguard-information` esi on epi.employeeID = esi.employeeID\n" + "  join oic oic on esi.employeeID = oic.oicID\n" + ";");



        ResultSet rs = pstmt.executeQuery();
        while (rs.next()) {

            Employee tempRI = new Employee();
            tempRI.setFirstName(rs.getString("firstName"));
            tempRI.setLastName(rs.getString("lastName"));
            tempRI.setLicense(rs.getString("license"));
            newEmployee.add(tempRI);

        }
        pstmt.close();
        conn.close();
        return newEmployee;
    } catch (SQLException ex) {
        Logger.getLogger(EmployeeDAO.class.getName()).log(Level.SEVERE, null, ex);
    }
    return null;
}

请帮我解决这个问题。任何帮助，将不胜感激！谢谢！

我的 JSP 代码：

                <% EmployeeDAO employeeDAO = new EmployeeDAO();
                            ArrayList<Employee> employeeList = employeeDAO.viewEmployee();%>
                <div class="form-bottom">
                    <form action="addTicket" method="post" class="complaint-form">

                        <div class="form-group">
                            Involved Guard:
                            <select name="form-guardInvolved" id="form-guardInvolved" onfocus="emptyElement('status')">
                                <% for (int i = 0; i < employeeList.size(); i++) {%>
                                <option value="<%=employeeDAO.viewEmployee().get(i).getFirstName() + " "%>
                                <%=employeeDAO.viewEmployee().get(i).getLastName()%>"> <%=employeeDAO.viewEmployee().get(i).getFirstName() + " "%>
                                <%=employeeDAO.viewEmployee().get(i).getLastName()%> </option>
                                <% }%>
                            </select>
                            <p> </p>
                        </div>
                        <div class="form-group">
                             Reported By:
                            <select name="form-reportedBy" id="form-reportedBy" onfocus="emptyElement('status')">
                                <% for (int i = 0; i < employeeList.size(); i++) {%>
                                <option value="<%=employeeDAO.viewOIC().get(i).getFirstName() + " "%>
                                <%=employeeDAO.viewOIC().get(i).getLastName()%>"> <%=employeeDAO.viewOIC().get(i).getFirstName() + " "%>
                                <%=employeeDAO.viewOIC().get(i).getLastName()%> </option>
                                <% }%>
                            </select>
                            <p> </p>
                        </div>

第一部分有效，但错误在第二部分。

Answer 1

您是否尝试将 for 循环设置为 for (int i = 0; i