JAVA客户端传递对象数组到Oracle存储过程做大数据量插入

最近在项目中用到了JAVA客户端传递对象数组到Oracle存储过程做大数据量插入,比如10万级别.
下面做一个插入10万条记录的示例步骤,,为了容易理解,表的结果很简单.
1,假设表结构如下:

CREATE TABLE UKBNOVCTCORDER(
LosingLEName varchar2(200),
LosingLECode varchar2(200)
)

2,在数据库建立一个type,对应JAVA端要传入的对象结构:

CREATE OR REPLACE TYPE BUT_UKBNOV_CTC_ORDER_REC AS OBJECT (
  losingLEName VARCHAR2(200),
     losingLECode VARCHAR2(200)
);

3,为了数组传输,建立一个数组类型的type:
CREATE OR REPLACE TYPE BUT_UKBNOV_CTC_ORDER_TAB AS TABLE OF BUT_UKBNOV_CTC_ORDER_REC
4,建立存储过程做插入工作:

CREATE OR REPLACE procedure bulkInsertCTDORDER(i_orders IN BUT_UKBNOV_CTC_ORDER_TAB)
as
ctcOrder BUT_UKBNOV_CTC_ORDER_REC;
begin
    FOR idx IN i_orders.first()..i_orders.last() LOOP
        ctcOrder:=i_orders(idx);
        INSERT INTO UKBNOVCTCORDER
          (LosingLEName,
           LosingLECode)
        VALUES
          (ctcOrder.losingLEName,
           ctcOrder.losingLECode);
    end loop;
    exception when others then
    raise;
end;

5,建立JAVA端java bean对象,(为节省版面,下面的get set方法省略,)

public class UkbnovCTCOrder  {
    private String losingLEName;
    private String losingLECode;
.....

在JAVA端访问存储过程插入数据,需要做JAVA数据类型和存储过程类型type的映射,下面的StructDescriptor是mapping Oracle端AS OBJECT类型,
tabDesc 是mapping Oracle端数组 AS TABLE OF类型的.

        Connection con = null;
        CallableStatement cstmt = null;     
        try {               
            con = OracleConnection.getConn();
            List orderList = new ArrayList();
            for(int i=0;i<100000;i++){
                orderList.add(new UkbnovCTCOrder("losingLEName"+i,"losingLECode+"+i));
            }            
            StructDescriptor recDesc = StructDescriptor.createDescriptor("BUT_UKBNOV_CTC_ORDER_REC", con);
            ArrayList pstruct = new ArrayList();
            for (UkbnovCTCOrder ord:orderList) {                
                Object[] record = new Object[2];
                record[0] = ord.getLosingLEName();
                record[1] = ord.getLosingLECode();
                STRUCT item = new STRUCT(recDesc, con, record);                
                pstruct.add(item);
            }           
            ArrayDescriptor tabDesc = ArrayDescriptor.createDescriptor("BUT_UKBNOV_CTC_ORDER_TAB", con);            
            ARRAY vArray = new ARRAY(tabDesc, con, pstruct.toArray());                   
            cstmt = con.prepareCall("{call bulkInsertCTDORDER(?)}");     
            cstmt.setArray(1, vArray);                 
            cstmt.execute();
            con.commit();

6,如果每次调用都需要做Java bean的到Oracle的"AS OBJECT"类型的mapping,则很繁琐,可以然Java bean实现oracle.sql.ORAData,这样就不用在调用时候在做mapping了.
java bean对象如下,为节省版面get set方法省略.

public class UkbnovCTCOrder1 implements ORAData {
    private String losingLEName;
    private String losingLECode;
    public static final String _ORACLE_TYPE_NAME = "BUT_UKBNOV_CTC_ORDER_REC";   
    protected MutableStruct _struct;
    static int[] _sqlType = { OracleTypes.VARCHAR, OracleTypes.VARCHAR };
    static ORADataFactory[] _factory = new ORADataFactory[_sqlType.length];
    public UkbnovCTCOrder1() {
        _struct = new MutableStruct(new Object[_sqlType.length], _sqlType, _factory);
    }
    public Datum toDatum(Connection conn) throws SQLException {
        _struct.setAttribute(0, this.losingLEName);
        _struct.setAttribute(1, this.losingLECode);
        return _struct.toDatum(conn, _ORACLE_TYPE_NAME);
    }
    public UkbnovCTCOrder1(String losingLEName, String losingLECode) {
        this();
        this.losingLEName = losingLEName;
        this.losingLECode = losingLECode;
    }
....

调用的时候不需要再做Java bean 到Oracle "AS OBJECT"数据类型的mapping,只需要做数组类型的mapping,如下:

        Connection con = null;
        CallableStatement cstmt = null;     
        try {     
            con = OracleConnection.getConn();           
            System.out.println(new Date());
            List orderList = new ArrayList();
            for(int i=0;i<100000;i++){
                orderList.add(new UkbnovCTCOrder1("losingLEName"+i,"losingLECode+"+i));
            }        
            ArrayDescriptor tabDesc = ArrayDescriptor.createDescriptor("BUT_UKBNOV_CTC_ORDER_TAB", con);            
            ARRAY vArray = new ARRAY(tabDesc, con, orderList.toArray());       
            
            cstmt = con.prepareCall("{call bulkInsertCTDORDER(?)}");     
            cstmt.setArray(1, vArray);               
            cstmt.execute();
            con.commit();

上面的示例在插入10万条记录只用了5秒(当然也和这里的表结构字段少有关系).