JSTL - JSP中 - VoidCC

顯示的結果集我都遵循從BalusC答覆解決我的問題JSTL - JSP中

How do I make a Java ResultSet available in my jsp?

現在，當我運行page.jsp，我收到此錯誤

org.apache.jasper.JasperException: javax.el.PropertyNotFoundException: Property 'name' not readable on type java.lang.String

請你能建議一個解決方案嗎？

我跟着下面也沒有運氣。

javax.el.PropertyNotFoundException: using JSTL in JSP

page.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> 
<%@page contentType="text/html" pageEncoding="UTF-8" import="java.util.List"%> 
<!DOCTYPE html> 
<html> 
    <head> 
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
     <title>JSP Page</title> 
    </head> 
    <body> 
    <c:forEach items="${rows}" var="row"> 
<c:out value="${row.name}" /> 
</c:forEach> 
<c:if test="${not empty error}">Error: ${error}</c:if> 

    </body> 
</html>

Controller.java

public class Controller extends HttpServlet { 


protected void doGet(HttpServletRequest request, HttpServletResponse response) 

throws ServletException, IOException { 

try { 
    List<Row> rows = Row.list(); 
    //request.getSession().setAttribute("rows", rows); 
    request.setAttribute("rows", rows); 
} catch (SQLException e) { 
    request.setAttribute("error", "Retrieving rows failed."); 
    e.printStackTrace(); 
} 

catch (Exception e) { 
    e.printStackTrace(); 
} 
finally {System.out.print("servlet");} 
request.getRequestDispatcher("page.jsp").forward(request, response); 
} 
}

Row.java

import javax.naming.*; 
import javax.sql.*; 

import java.sql.*; 
import java.util.ArrayList; 
import java.util.List; 

public class Row { 
    private String name; 

private String getName() { 
    return name; 
} 

public void setName(String name) { 
    this.name = name; 
} 

public static List<Row> list() throws SQLException { 
    Connection connection = null; 
    Statement statement = null; 
    ResultSet resultSet = null; 
    List<Row> rows = new ArrayList<Row>(); 

    try { 
     Context initCtx = new InitialContext(); 
     Context envCtx = (Context) initCtx.lookup("java:comp/env"); 
     DataSource ds = (DataSource) 
      envCtx.lookup("jdbc/TestDB"); 
     connection = ds.getConnection(); 
     statement = connection.createStatement(); 
     resultSet = statement.executeQuery("select id, name from account"); 
     while (resultSet.next()) { 
      Row row = new Row(); 
      row.setName(resultSet.getString("name")); 
      rows.add(row); 
     } 
    } catch(Exception e) { 
     e.printStackTrace(); 
    } 

    finally { 
     if (resultSet != null) try { resultSet.close(); } 
catch (SQLException logOrIgnore) {} 
     if (statement != null) try { statement.close(); } 
catch (SQLException logOrIgnore) {} 
     if (connection != null) try { connection.close(); } 
catch (SQLException logOrIgnore) {} 
    } 

    return rows; 
} 
}

非常感謝穆罕默德

來源

2012-02-28 Muhammad

你getter是private

private String getName() { 
    return name; 
}

它是不可見的

將其更改爲public

public String getName() { 
    return name; 
}

來源

2012-02-28 22:35:55 reevesy

JSTL - JSP中

回答

相關問題