java - "Incorrect syntax near ' { '"调用 SQL Server 存储过程

Question

我正在尝试从我的存储过程中获取结果，但我得到了 ERROR: Incorrect syntax near '{'. 。我看到许多示例对 sql string 使用相同的东西，但我不确定为什么会出现错误。我有相同数量的参数...

当我像这样在我的数据库中执行我的存储过程时

exec rptGetAssetbyLocation '2122' 我得到了我的 5 列

如何使用 Callable Statement 取回结果？我对 registerOutParameter 做错了什么？

try
        {
         Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
                                String url = "jdbc:sqlserver:...";
                                String username = "username";
                                String password = "password";

                    sb.append("<table id=\"examplee\" border=1 >" 
                    + "<tr><td>ID</td><td>TAG</td><td>NAME</td>"
                        + "<td>MODEL</td><td>SERIAL NUMBER</td></tr>");

            String query = "{exec rptGetAssetbyLocation(?,?,?,?,?)}";
      Connection conn = DriverManager.getConnection(url, username, password);
                    CallableStatement stmt = conn.prepareCall(query);
                    stmt.registerOutParameter(1, java.sql.Types.INTEGER);
                    stmt.registerOutParameter(2, java.sql.Types.VARCHAR);
                    stmt.registerOutParameter(3, java.sql.Types.VARCHAR);
                    stmt.registerOutParameter(4, java.sql.Types.VARCHAR);
                    stmt.registerOutParameter(5, java.sql.Types.VARCHAR);


                                ResultSet rs = stmt.executeQuery();


            while (rs.next())
            {
                int id = rs.getInt("ID");
                String tag = rs.getString("tag");
                String name = rs.getString("name"); 
                String model = rs.getString("model"); 
                String serNum = rs.getString("serialNumber");

                sb.append("<tr><td>" + id + "</td>" 
                        + "<td>" + tag + "</td>" 
                        + "<td>" + name + "</td>" +
                        "<td>" + model + "</td>" +
                        "<td>" + serNum + "</td></tr>");
            }
            sb.append("</table>");
        }
        catch(Exception e)
        {
            sb.append("<h1>ERROR: " + e.getMessage() + "</h1>");
        }
        sb.append("</body></html>");
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        out.println(sb);
    }

Answer 1

如果您在 SQL Server Management Studio (SSMS) 中运行存储过程的所有操作是

exec rptGetAssetbyLocation '2122' 

那么你可能不需要弄乱输出参数，你可以只使用一个输入参数来调用你的存储过程，然后像这样从 ResultSet 中检索结果

String query = "exec rptGetAssetbyLocation ?";
Connection conn = DriverManager.getConnection(url, username, password);
CallableStatement stmt = conn.prepareCall(query);
stmt.setString(1, "2122");
ResultSet rs = stmt.executeQuery();
while (rs.next())
{
    int id = rs.getInt("ID");
    String tag = rs.getString("tag");
    String name = rs.getString("name"); 
    String model = rs.getString("model"); 
    String serNum = rs.getString("serialNumber");
    // ...and do other useful stuff
}