Question

我正在创建一个Web应用程序，它需要连接到数据库并获取各种类型报告的类别。当我在java中通过storedproc执行我的SQL时，我遇到了一个奇怪的错误。 SELECT * FROM RPT_CTGR;是我提交的sql，但是当我查看堆栈跟踪时，它会返回：

 org.springframework.jdbc.BadSqlGrammarException: CallableStatementCallback; bad SQL grammar [{call SELECT * FROM RPT_CTGR;(?)}]; nested exception is java.sql.SQLException: ORA-06550: line 1, column 38:
PLS-00103: Encountered the symbol ")" when expecting one of the following:

   . ( * @ % & = - + < / > at in is mod remainder not rem
   <an exponent (**)> <> or != or ~= >= <= <> and or like like2
   like4 likec as between || indicator multiset member
   submultiset

    org.springframework.jdbc.support.SQLStateSQLExceptionTranslator.doTranslate(SQLStateSQLExceptionTranslator.java:98)
    org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72)
    org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:80)
    org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:969)
    org.springframework.jdbc.core.JdbcTemplate.call(JdbcTemplate.java:1003)
    org.springframework.jdbc.object.StoredProcedure.execute(StoredProcedure.java:144)
    org.ifmc.qies.reportaudit.impl.CataImpl.search(CataImpl.java:59)
    org.ifmc.qies.reportaudit.web.CataAction.execute(CataAction.java:31)
    org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
    org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
    org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

由于某种原因，将额外的“（？）”附加到我的语句的末尾会导致错误。有什么想法吗？

代码

import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.sql.DataSource;

import org.ifmc.qies.reportaudit.dao.CataDao;
import org.ifmc.qies.reportaudit.model.Catagory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.core.SqlOutParameter;
import org.springframework.jdbc.core.SqlParameter;
import org.springframework.jdbc.core.support.JdbcDaoSupport;
import org.springframework.jdbc.datasource.DriverManagerDataSource;

import oracle.jdbc.OracleTypes;

public class CataImpl extends JdbcDaoSupport implements CataDao {
    protected static ApplicationContext ctx = null;
//BaseStoredProcedure extends StoredProcedure
    public class CataProc extends BaseStoredProcedure{

        public CataProc(DataSource ds, String name) {
            super(ds,name);
            System.out.println(name);
            System.out.println(getSql());
            declareParameter(new SqlOutParameter("catagories", OracleTypes.CURSOR,
                    new RowMapper() {
                        public Object mapRow(ResultSet rs, int rowNum)
                                throws SQLException {

                            Catagory t = new Catagory();
                            t.setCatId(rs.getString(1));
                            t.setCat_name(rs.getString(2));
                            System.out.println(t.getCat_name());
                            return t;
                        }
                    }));
        }


    }
@Override
    public List search() {
    String[] paths = {"V:path/to/applicationcontext.xml"};
    Map params=new HashMap();
    ctx = new FileSystemXmlApplicationContext(paths);
    DataSource ds = (DriverManagerDataSource)ctx.getBean("dataSource");
        CataProc proc = new CataProc(ds,"SELECT * FROM RPT_CTGR;");
        Map results = proc.execute(params);
        List catagory = (List)results.get("catagories");
        //Test
        System.out.println(catagory.get(1).toString());
        return catagory;
    }



}

除了print之外，我得到了所有catagories.get(1).toString语句，以正确返回我提交的SQL

Answer 1

您应该在Oracle数据库中创建一个执行Store Procedure语句的SELECT。您可以参考this question作为参考。

E.g。

CREATE OR REPLACE PROCEDURE getCatagories(categories in out sys_refcursor) is
  ...
  SELECT * FROM RPT_CTGR;
  ...

之后，您需要按名称调用存储过程。

public List search() {
  ...
  DataSource ds = (DriverManagerDataSource) ctx.getBean("dataSource");
  CataProc proc = new CataProc(ds,"getCatagories");
  Map results = proc.execute(params);
  List catagory = (List)results.get("catagories");
  ... 
}

PLS-00103：遇到符号“）”

1 个答案: