bboss persistent 实现数据库更新操作

4.5 更新操作代码段

4.5.1预编译更新操作

PreparedDBUtil preDBUtil = new PreparedDBUtil();
int pk = 0;
String sqlstr = "update OFFICE_DOCINFO set DOCID=?, GETDOCID=?, " +
"DOCDATE=?, RECIVEDATE=?, DOCTITLE=?, DOCUNIT=?, DOCURGENT=?, DOCKIND=?, " +
"DOCCLASS=?, SECRET=?, DOCSUBJECT=?, DOCTYPE=?, DOCNUM=?, DOCOFFICE=?, " +
"DOCINFO=?, DOCRESULT=?, DOCTRANSACT=?, DOCREMARK=?, DOCMODE=?, WORKLEVEL=?, " +
"RESERVETERM=?, IDENTITY=?, DOCSUM=?, OLD_NUMBER=?, DOCKIND_ID=?, PROCESSID=?, " +
"DOCTYPE_ID=?, CLASSID=?,isSend=? where DOCINFO_ID=?";

DocInfo docInfo = (DocInfo)vo;

String sDocId = docInfo.getDocId();
String sGetDocId = docInfo.getGetDocID();
Timestamp tsDocDate = (Timestamp) docInfo.getDocDate();
Timestamp tsReceiveDate = (Timestamp) docInfo.getReciveDate();
String sDocTitle = docInfo.getDocTitle();
String sDocUnit = docInfo.getDocUnit();
int iDocUrgent = docInfo.getDocUrgent();
String sDocClass = docInfo.getDocClass();
String sDocKind = docInfo.getDocKind();
String sSecret = docInfo.getSecret();
String sDocSubject = docInfo.getDocSubject();
String sDocType = docInfo.getDocType();
String sDocNum = docInfo.getDocNum();
String sDocOffice = docInfo.getDocOffice();
String sDocInfo = docInfo.getDocInfo();
String sDocResult = docInfo.getDocResult();
String sDocTransact = docInfo.getDocTransact();
String sDocRemark = docInfo.getDocRemark();
int iDocMode = docInfo.getDocMode();
String sWorkLevel = docInfo.getWorkLevel();
String sReserveTerm = docInfo.getReserveTerm();
int iIdentity = docInfo.getIdentity();
String iDocSum = docInfo.getDocSum();
String sOld_number = docInfo.getOld_number();
int iDocKindId = docInfo.getDocKindId();
//int iProcessId = docInfo.getProcessId();
String sProcessId = docInfo.getProcessId();
int iDocTypeId = docInfo.getDocTypeId();
int iDocClassId = docInfo.getDocClassId();
int isSend = docInfo.getIsSend();

try {
preDBUtil.preparedUpdate(sqlstr); //在缺省的数据库上操作
//preDBUtil.preparedUpdate(“bspf”,sqlstr);在指定的数据库中，执行sql语句。
preDBUtil.setString(1,sDocId);
preDBUtil.setString(2,sGetDocId);
preDBUtil.setTimestamp(3,tsDocDate);
preDBUtil.setTimestamp(4,tsReceiveDate);
preDBUtil.setString(5,sDocTitle);
preDBUtil.setString(6,sDocUnit);
preDBUtil.setInt(7,iDocUrgent);
preDBUtil.setString(8,sDocClass);
preDBUtil.setString(9,sDocKind);
preDBUtil.setString(10,sSecret);
preDBUtil.setString(11,sDocSubject);
preDBUtil.setString(12,sDocType);
preDBUtil.setString(13,sDocNum);
preDBUtil.setString(14,sDocOffice);
preDBUtil.setString(15,sDocInfo);
preDBUtil.setString(16,sDocResult);
preDBUtil.setString(17,sDocTransact);
preDBUtil.setString(18,sDocRemark);
preDBUtil.setInt(19,iDocMode);
preDBUtil.setString(20,sWorkLevel);
preDBUtil.setString(21,sReserveTerm);
preDBUtil.setInt(22,iIdentity);
preDBUtil.setString(23,iDocSum);
preDBUtil.setString(24,sOld_number);
preDBUtil.setInt(25,iDocKindId);
preDBUtil.setString(26,sProcessId);
preDBUtil.setInt(27,iDocTypeId);
preDBUtil.setInt(28,iDocClassId);
preDBUtil.setInt(29,isSend);
preDBUtil.setInt(30,docInfo.getDocInfoId());

Object obj = preDBUtil.executePrepared();
return docInfo.getDocInfoId();
} catch (SQLException e) {
e.printStackTrace();
throw new DataAccessException("向OFFICE_DOCINFO表插入记录错:"+e.getMessage(),e);
}

4.5.2一般更新操作

String sqlstr = "UPDATE OFFICE_DOCINFO SET DOCMODE = " + newStatus +" WHERE DOCINFO_ID = "+docInfoId;
DBUtil dbUtil = new DBUtil();
try {
dbUtil.executeUpdate(sqlstr);
// dbUtil.executeUpdate(“bspf”,sqlstr);;在指定的数据库中，执行sql语句。

} catch (SQLException e) {
e.printStackTrace();
throw new DataAccessException("更新公文状态错:"+e.getMessage(),e);
}

4.5.3 CLOB字段的更新操作

PreparedDBUtil db = new PreparedDBUtil();
StringBuffer sql = new StringBuffer();
sql.append("update TD_CMS_DOCUMENT set TITLE=?,SUBTITLE=?,")
.append("AUTHOR=?,CONTENT=?,KEYWORDS=?,") //dockind
.append("DOCABSTRACT=?,")
.append("TITLECOLOR=?,")
.append("DOCSOURCE_ID=?,")
.append("DETAILTEMPLATE_ID=?,")
.append("LINKTARGET=?,Doc_level=?,PARENT_DETAIL_TPL=?,PIC_PATH=?,mediapath=?,publishfilename=?,")
.append("docwtime=" + DBUtil.getDBDate(doc.getDocwtime()))
.append(",secondtitle=?,isnew=?,newpic_path=?,ordertime=? where document_id=?") ;

try
{
db.preparedUpdate(sql.toString());
//db.preparedUpdate(“bspf”,sql.toString());

db.setString (1,doc.getTitle());
db.setString (2,doc.getSubtitle());
db.setString (3,doc.getAuthor());
db.setClob (4,doc.getContent(),"content");
db.setString (5,doc.getKeywords());
db.setString (6,doc.getDocabstract()==null?"无":doc.getDocabstract());
db.setString (7,doc.getTitlecolor());
db.setInt (8,doc.getDocsource_id());
db.setInt (9,doc.getDetailtemplate_id());
db.setString (10,doc.getLinktarget());
db.setInt (11,doc.getDoc_level());
db.setString (12,doc.getParentDetailTpl());
db.setString (13,doc.getPicPath());
db.setString (14,doc.getMediapath());
db.setString (15,doc.getPublishfilename());
db.setString (16,doc.getSecondtitle());
db.setInt (17,doc.getIsNew());
db.setString (18,doc.getNewPicPath());
db.setTimestamp (19,new Timestamp(doc.getOrdertime().getTime()));
db.setPrimaryKey (20,doc.getDocument_id());
db.executePrepared();

b = true;
}
catch (SQLException e)
{
e.printStackTrace();
throw new DocumentManagerException(e.getMessage());
}
return b;

4.5.3 BLOB字段的更新操作

PreparedDBUtil db = new PreparedDBUtil();
StringBuffer sql = new StringBuffer();
sql.append("update TD_CMS_DOCUMENT set TITLE=?,SUBTITLE=?,")
.append("AUTHOR=?,CONTENT=?,KEYWORDS=?,") //dockind
.append("DOCABSTRACT=?,")
.append("TITLECOLOR=?,")
.append("DOCSOURCE_ID=?,")
.append("DETAILTEMPLATE_ID=?,")
.append("LINKTARGET=?,Doc_level=?,PARENT_DETAIL_TPL=?,PIC_PATH=?,mediapath=?,publishfilename=?,")
.append("docwtime=" + DBUtil.getDBDate(doc.getDocwtime()))
.append(",secondtitle=?,isnew=?,newpic_path=?,ordertime=? where document_id=?") ;

try
{
db.preparedUpdate(sql.toString());
//db.preparedUpdate(“bspf”,sql.toString());

db.setString (1,doc.getTitle());
db.setString (2,doc.getSubtitle());
db.setString (3,doc.getAuthor());
db.setBlob (4,doc.getContent(),"content");
db.setString (5,doc.getKeywords());
db.setString (6,doc.getDocabstract()==null?"无":doc.getDocabstract());
db.setString (7,doc.getTitlecolor());
db.setInt (8,doc.getDocsource_id());
db.setInt (9,doc.getDetailtemplate_id());
db.setString (10,doc.getLinktarget());
db.setInt (11,doc.getDoc_level());
db.setString (12,doc.getParentDetailTpl());
db.setString (13,doc.getPicPath());
db.setString (14,doc.getMediapath());
db.setString (15,doc.getPublishfilename());
db.setString (16,doc.getSecondtitle());
db.setInt (17,doc.getIsNew());
db.setString (18,doc.getNewPicPath());
db.setTimestamp (19,new Timestamp(doc.getOrdertime().getTime()));
db.setPrimaryKey (20,doc.getDocument_id());
db.executePrepared();

b = true;
}
catch (SQLException e)
{
e.printStackTrace();
throw new DocumentManagerException(e.getMessage());
}
4.5.4 预编译更新操作和普通更新操作的不同点

jdbc规范提供了两种不同的更新操作模式：预编译和普通两种，二者的区别为：
预编译更新的操作效率高，有效防止sql注入问题，编码和调试没有普通更新操作方便，综合各种因素推荐使用预编译更新操作。