spring中对存储过程的调用

1. org.springframework.jdbc.object.StoredProcedure 这是一个抽象类,通过declareParameter方法来声明存储过程的输入输出参数,再由

execute方法来调用存储过程。
    org.springframework.jdbc.core.SqlParameter 用来代表存储过程的参数。
    org.springframework.jdbc.core.ResultSetSupportingSqlParameter SqlParameter的子类,是SqlOutParameter、SqlReturnResultSet这

些支持结果集参数类的公共基类
    org.springframework.jdbc.core.SqlOutParameter ResultSetSupportingSqlParameter的子类,用来代表存储过程的输出参数。
    org.springframework.jdbc.core.SqlReturnResultSet ResultSetSupportingSqlParameter的子类,用来代表调用存储过程的输出结果集


    org.springframework.jdbc.core.RowMapper 这是一个接口,通常为JdbcTemplate的查询方法或者存储过程返回结果集使用。

2.新建一个StoredProcedure中的子类:
public class TestStoredProcedure extends StoredProcedure {

protected TestStoredProcedure() {
  super();
}
protected TestStoredProcedure(DataSource ds) {
  super();
  super.setDataSource(ds);
}
protected TestStoredProcedure(DataSource ds, String name) {
  super(ds, name);
 
}

}
2.在某一个DAO中写下这个方法:
调用TestStoredProcedure就可以了.具体可参考下面.

3.然后在spring-conf.xml中配置这个类,并注入dataSource就可以了.

测试例子如下:
import java.sql.Types;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import javax.sql.DataSource;

import org.springframework.jdbc.core.SqlOutParameter;
import org.springframework.jdbc.datasource.*;
import org.springframework.jdbc.object.StoredProcedure;

public class TestSP {

    public static void main(String[] args)  {
       
        System.out.println("DB TestSP!");
        TestSP t = new TestSP();
        t.test();
        System.out.println("Done!");
       
    }
   
    void test() {
        DriverManagerDataSource ds = new DriverManagerDataSource();
        ds.setDriverClassName("oracle.jdbc.driver.OracleDriver");
        ds.setUrl("jdbc:oracle:thin:@172.20.XX.XXX:1521:test");
        ds.setUsername("root");
        ds.setPassword("root");

        StoreTemplate  test=new StoreTemplate(ds);
        test.setFunction(true);
        test.setSql("sysdate");
        test.setDateOutParam("date");
       
        printMap( test.execute());

// MyStoredProcedure sproc = new MyStoredProcedure(ds);
//        Map res = sproc.execute();
//        printMap(res);
               
    }

    private class MyStoredProcedure extends StoredProcedure {
        public static final String SQL = "sysdate";

        public MyStoredProcedure(DataSource ds) {
            setDataSource(ds);
            setFunction(true);
            setSql(SQL);
            declareParameter(new SqlOutParameter("date", Types.DATE));
            compile();
        }

        public Map execute() {
            Map out = execute(new HashMap());
            return out;
        }

    }

    private static void printMap(Map r) {
        Iterator i = r.entrySet().iterator();
        while (i.hasNext()) {
            System.out.println((String) i.next().toString()); 
        }
    }
}

import java.sql.Types;
import java.util.HashMap;
import java.util.Map;
import javax.sql.DataSource;
import org.springframework.jdbc.core.SqlParameter;
import org.springframework.jdbc.object.StoredProcedure;
import org.springframework.jdbc.core.SqlOutParameter;

public class StoreTemplate extends StoredProcedure {

HashMap map = new HashMap();

public StoreTemplate() {
  super();

}

public void setValue(String key, Object obj) {
  map.put(key, obj);
}

public StoreTemplate(DataSource ds) {
  setDataSource(ds);
}

public Map execute() {
  if (this.getSql() == null || this.getSql().equals(""))
   return null;
  this.compile();
  return execute(map);
}

public void setVarcharParam(String param) {
  this.declareParameter(new SqlParameter(param, Types.VARCHAR));
}

public void setDoubleParam(String param) {
  this.declareParameter(new SqlParameter(param, Types.DOUBLE));
}

public void setIntegerParam(String param) {
  this.declareParameter(new SqlParameter(param, Types.INTEGER));
}

public void setVarcharOutParam(String param) {
  this.declareParameter(new SqlOutParameter(param, Types.VARCHAR));
}

public void setDoubleOutParam(String param) {
  this.declareParameter(new SqlOutParameter(param, Types.DOUBLE));
}

public void setIntegerOutParam(String param) {
  this.declareParameter(new SqlOutParameter(param, Types.INTEGER));
}
public void setDateOutParam(String param) {
  this.declareParameter(new SqlOutParameter(param, Types.DATE));
}
}




本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/pengchua/archive/2007/12/17/1943830.aspx

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