Question

我正在使用postgresql和java（NetBeans）构建项目。

当我尝试执行一个简单的查询（从costumer中选择*）时，我收到一个错误，告诉我＃34;关系客户＆＃34;的权限被拒绝。

当我搜索答案时，我发现的所有内容都是关于授予用户权限，所以我进入了pgAdmin并编写了＃34;将数据库脏的所有权限授予henrik;＆＃34; 。这并没有改变任何事情 - 这就是我发布新帖子的原因..

程序的完整错误消息输出：

run:
1
2
3

Mar 23, 2014 7:47:18 PM sletdendog.SletDenDog main
SEVERE: ERROR: permission denied for relation costumer
org.postgresql.util.PSQLException: ERROR: permission denied for relation costumer
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2157)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1886)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255)
at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:555)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:417)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:302)
at sletdendog.SletDenDog.main(SletDenDog.java:27)

BUILD SUCCESSFUL (total time: 0 seconds)

java程序非常简单 - 看起来像这样：

package sletdendog;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;

public class SletDenDog {

private static Connection connection = null;
private static PreparedStatement statement = null;
private static ResultSet result = null;
private static ResultSetMetaData meta = null;

public static void main(String[] args) {

    try{
        System.out.println("1");
        connection = DriverManager.getConnection("jdbc:postgresql://localhost/dirty", "henrik", "hokus pokus");
        System.out.println("2");
        statement = connection.prepareStatement("select * from costumer;");
        System.out.println("3");
        result = statement.executeQuery();
        System.out.println("4");
        meta = result.getMetaData();
        System.out.println("5");
        for (int i = 1; i <= meta.getColumnCount(); i++) {
            System.out.println(meta.getColumnName(i));
        }

    } catch (SQLException ex){
        Logger lgr = Logger.getLogger(SletDenDog.class.getName());
        lgr.log(Level.SEVERE, ex.getMessage(), ex);
    } finally {
        try{
            if(connection != null){
                connection.close();
            }
            if(statement != null){
                statement.close();
            }
            if(result != null){
                result.close();
            }
        } catch(SQLException ex){

            System.out.println("Something wasn't closed...");

        }
    }   
}   
}

Answer 1

数据库上的权限是不够的您还需要至少相关模式的USAGE权限和表的SELECT权限。

这个密切相关答案的更多细节：
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postgresql：关系权限被拒绝

1 个答案: