OAF開發(fā)中的知識(shí)有哪些

本篇文章給大家分享的是有關(guān)OAF開發(fā)中的知識(shí)有哪些，小編覺得挺實(shí)用的，因此分享給大家學(xué)習(xí)，希望大家閱讀完這篇文章后可以有所收獲，話不多說，跟著小編一起來看看吧。

OAF開發(fā)時(shí)總結(jié)的小知識(shí)點(diǎn) ：

1：變量類型之間的轉(zhuǎn)換：

(1)：int => 其他類型

Int  xxxx;

Number yyyy = (Number)xxxx;

Number yyyy=new Number(xxxx);

String yyyy = String.valueOf(xxxx);

String yyyy = Integer.toString(xxxx);

String yyyy = ""+xxxx;

(2):number => 其他類型

Number xxxx;

Int yyyy = xxxx.intValue();

int yyyy = (int)xxxx;

String yyyy = ""+xxxx;

String yyyy =String.valueOf(xxxx);

(3):date => 其他類型

Date xxxx;

String yyyy= String.valueOf(xxxx);

String yyyy= xxxx.toString();

(4):String => 其他類型

String xxxx;

int yyyy = Integer.parseInt(xxxx);

int yyyy = Integer.valueOf(xxxx);

try {

Number yyyy = new Number(xxxx);

}

catch (Exception e) {

}

Number yyyy = (Number)xxxx;

Date yyyy = Date.valueOf(xxxx);

Date yyyy = (Date)xxxx;

2：OAF之間的一些基本的實(shí)現(xiàn)方法：

（1）：一般在CO中不寫具體的邏輯代碼，要將所有的方法放到AM中 ，然后在CO中調(diào)用AM中的函數(shù)或者過程。具體的方法是：

OAApplicationModule am = pageContext.getApplicationModule(webBean);

調(diào)用過程：       String useId = ""+useid;

Serializable[] parameters = { useId };

am.invokeMethod("init", parameters);

（am.invokeMethod("init");）

調(diào)用函數(shù)：String supplierid = Integer.toString(n);

Serializable[] param = {supplierid};

Serializable SupplierName = am.invokeMethod("GetSupplierName",param);

備注：SupplierName 可以直接使用，類型取決于函數(shù)返回的類型

3：頁面上的變量或者項(xiàng)的獲得和賦值方法：

（1）:鏈接上傳入的變量的值：

（OA.jsp?page=/oracle/apps/xxpos/xxpos5961/back/webui/CreatePG&BackNumber={@BackNumber}&HeaderId={@HeaderId}&HeaderStatus={@HeaderStatus}&retainAM=Y&addBreadCrumb=Y&UpdateFlg=Y）

String backnumber = pageContext.getParameter("BackNumber");

（2）：得到頁面上的item：

OAMessageLovInputBean asnBean1 = (OAMessageLovInputBean)webBean.findChildRecursive("NumberFromSearch");

String aa="";

asnBean1.setValue(pageContext,aa);

4：得到VO和當(dāng)前行的方法：

OAViewObject voDetail = (OAViewObject)am.findViewObject("BackPVO1");

BackPVORowImpl rowDetail = (BackPVORowImpl)voDetail.getCurrentRow();

得到VO中某個(gè)字段的方法：

String N = ""+rowDetail.getUserTypeID();

或者：

Number headerid =

(Number) voDetail.getCurrentRow().getAttribute("HeaderId");

5：循環(huán)判斷頁面上的記錄的方法：

//校驗(yàn)實(shí)收數(shù)量是否大于換貨數(shù)量

OAViewObject voline = (OAViewObject)am.findViewObject("DetailLineVO1");

Row rowLine = voline.first();

int rec_record = 0;

while (rowLine != null) {

Number backquan =(Number)rowLine.getAttribute("BackQuantity");

Number actualquan =(Number)rowLine.getAttribute("ActualQuantity");

String TOsubinv = (String)rowLine.getAttribute("ToSubinventoryCode");

String TOlocator = ""+(Number)rowLine.getAttribute("ToLocatorId");

rec_record = rec_record +1;

String   record_num = ""+ rec_record;

String ACTUALQUAN = ""+actualquan;

if (!(TOsubinv != null && TOsubinv.length() != 0)){

System.out.println("enter this 1111");

MessageToken[] errTokens = { new MessageToken("RECORD_NUM",record_num)};

throw new OAException("XXPOS","FWK_TBX_T_BACK_NO_TOLOTSUB",errTokens);

}

if ("null".equals(TOlocator)){

System.out.println("enter into here 2222");

MessageToken[] errTokens = { new MessageToken("RECORD_NUM",record_num)};

throw new OAException("XXPOS","FWK_TBX_T_BACK_NO_TOLOCATOR",errTokens);

}

if ("null".equals(ACTUALQUAN)){

System.out.println("enter into here 3333");

MessageToken[] errTokens = { new MessageToken("RECORD_NUM",record_num)}；                    throw new OAException("XXPOS","FWK_TBX_NO_ACTU_QUAN",errTokens);

}

else{

if  (backquan.compareTo(actualquan)<0){

System.out.println("the actual is wrong");

MessageToken[] errTokens = { new MessageToken("RECORD_NUM",record_num)};

throw new OAException("XXPOS","FWK_TBX_T_ACTU_QUAN_BELOW",errTokens);

}

}

rowLine = voline.next();

}

6：AM中調(diào)用plsql包的方法是：

調(diào)用函數(shù)且返回值：

public String get_header_status(String headerid){

String result;

OADBTransaction adbtransaction = (OADBTransaction)getDBTransaction();

String s = "BEGIN :1:=xxpos_5961_back_process_pkg.get_header_status(p_header_id => :2); END;";

OracleCallableStatement raclecallablestatement = (OracleCallableStatement)oadbtransaction.createCallableStatement(s,1);

try

{

oraclecallablestatement.registerOutParameter(1,OracleTypes.VARCHAR);

oraclecallablestatement.setString(2,headerid);

oraclecallablestatement.execute();

result=oraclecallablestatement.getString(1);

}

catch(Exception exception1)

{

throw OAException.wrapperException(exception1);

}

finally

{

try

{

oraclecallablestatement.close();

}

catch(Exception _ex)

{

}

}

return result;

}

調(diào)用過程 ：

public void setvaluesequence(String headerid)

{

System.out.println("set value sequence is 1111"+headerid);

OADBTransaction txn = getOADBTransaction();

CallableStatement cs =txn.createCallableStatement("begin xxpos_5961_back_process_pkg.seq_setvalue(p_header_id =>:1); end;",1);

try {

cs.setString(1,headerid);

cs.execute();

cs.close();

}

catch (SQLException sqle)

{

throw OAException.wrapperException(sqle);

}

}

調(diào)用函數(shù)不返回值：

public void delete_reserve()

{

OAViewObject voDetail = (OAViewObject)findViewObject("DetailHeaderVO1");

DetailHeaderVORowImpl rowDetail = (DetailHeaderVORowImpl)voDetail.getCurrentRow();

String headerid = ""+rowDetail.getHeaderId();

String result;

OADBTransaction adbtransaction = (OADBTransaction)getDBTransaction();

String s = "BEGIN :1:=xxpos_5961_back_process_pkg.delete_reserve(p_header_id => :2); END;";

OracleCallableStatement cs = (OracleCallableStatement)oadbtransaction.createCallableStatement(s,1);

try {

cs.registerOutParameter(1,OracleTypes.VARCHAR);

System.out.println("headerid si si sis wangshue"+headerid );

cs.setString(2,headerid);

cs.execute();

result=cs.getString(1);

}

catch(Exception exception1)

{

throw OAException.wrapperException(exception1);

}

finally

{

try

{

cs.close();

}

catch(Exception _ex)

{

}

}

if ("F".equals(result))

{

throw new OAException("XXPOS", "FWK_TBX_DELETE_RESERVE_FAILURE");

}

}

以上就是OAF開發(fā)中的知識(shí)有哪些，小編相信有部分知識(shí)點(diǎn)可能是我們?nèi)粘９ぷ鲿?huì)見到或用到的。希望你能通過這篇文章學(xué)到更多知識(shí)。更多詳情敬請(qǐng)關(guān)注億速云行業(yè)資訊頻道。