如何把java中的arrayList转化为oracle中的数组(array) --转

 

在写存储过程中经常会遇到把java中的arrayList转化为oracle中数组，（arrayList中存的是一些java对象）简单总结一下．
例：arrayList中存在一些people对象
１．首先要在数据库中建立相应的ｊａｖａ对象和数组，
如： /* 和ｊａｖａ对象对应的数据库对象 */
CREATE TYPE peopleOracleObject AS OBJECT
(
　　peopleOracleID NUMBER(8) ,
　　nameOracle varchar(50) ,
　　ageOracle Number(3)
)
/ 数据库中的array
CREATE TYPE people_Oracle_LIST AS VARRAY(500) OF peopleOracle ;
/

２．将ｊａｖａ中的arrayList转化
private static ARRAY getOracleArray(Connection con, String Oraclelist,
ArrayList objlist) throws Exception {
　　ARRAY list = null;
　　if (objlist != null && objlist.size() > 0) {
　　StructDescriptor structdesc = new StructDescriptor(
　　"peopleOracleObject", con);
　　STRUCT[] structs = new STRUCT[objlist.size()];
　　Object[] result = new Object[0];
　　for (int i = 0; i < objlist.size(); i++) {
　　result = new Object[2];
　　result[0] = new Long(((people)(objlist.get(i))).getPeopleID());
　　result[1] = new Long(((people)(objlist.get(i))).getPeopleName());
　　result[2] = new Long(((people)(objlist.get(i))).getPeopleAge());
　　structs[i] = new STRUCT(structdesc, con, result);
}
ArrayDescriptor desc = ArrayDescriptor.createDescriptor(Oraclelist,
　con);
list = new ARRAY(desc, con, structs);
} else {
　ArrayDescriptor desc = ArrayDescriptor.createDescriptor(Oraclelist,
con);
　STRUCT[] structs = new STRUCT[0];
　list = new ARRAY(desc, con, structs);
}
return list;
} // function

３．/*把转换后的数组加到存储过程中*/
public static int updateADInfo(ArrayList peoleList, int ID){
Connection con = null;
CallableStatement stmt = null;
int backVal;
　try {
　　con = pool.getConnection();
　　if (con != null) {
　　stmt = con.prepareCall("{call updatePeople(?,?,?)}");
　　ARRAY adArray = getOracleArray(con, "people_Oracle_LIST",　
　　peoleList);
　　((OracleCallableStatement) stmt).setARRAY(1, adArray);
　　stmt.setInt(2, ID);
　　stmt.registerOutParameter(3, java.sql.Types.INTEGER);
　　stmt.execute();
} else {
　backVal = 1;
}
} catch (Exception e) {　
　　e.printStackTrace();
} finally {
pool.freeDBResource(con, stmt, null);
}
　return backVal;
}

４．存储过程中调用
CREATE OR REPLACE PROCEDURE NAD_SP_CreateWebCostToAd(
p_peopleArray IN people_Oracle_LIST,
p_ID IN number,
p_out OUT VARCHAR2
)
AS
VpeopleID number(8) :=0;
VpeopleName varchar(50):=0;
Vage number(3):=0;
begin
for i 1...p_peopleArray.count loop
　　peopleObj :=p_peopleArray(i);
　　VpeopleID := peopleObj.peopleOracleID;
　　VpeopleName := peopleObj.nameOracle;
　　Vage :=peopleObj.ageOracle;

.................

　end loop;
　commit;
EXCEPTION
WHEN OTHERS THEN
p_out:='-1' || SQLERRM;
ROLLBACK;
END;

/
SHOW ERRORS