工作中需要手工編譯J2ME的程序,開始編寫了一個批處理程序,但是感覺使用中非常繁瑣,於是想用Delphi做一個集成編譯工具,但是Java的編譯工具都是console程序,怎麼捕獲到console程序的輸出,並顯示在Memo中呢,查了網上的一些資料,反復測試,找到了一個實現的方法,希望對大家有幫助:
procedure TMainForm.RunDosInMemo(const DOSApp: string; AMemo: TMemo);
const
{設置ReadBuffer的大小}
ReadBuffer = 2400;
var
Security: TSecurityAttributes;
ReadPipe, WritePipe: THandle;
start: TStartUpInfo;
ProcessInfo: TProcessInformation;
Buffer: PChar;
BytesRead: DWord;
Buf: string;
begin
with Security do
begin
nlength := SizeOf(TSecurityAttributes);
binherithandle := true;
lpsecuritydescriptor := nil;
end;
{創建一個命名管道用來捕獲console程序的輸出}
if Createpipe(ReadPipe, WritePipe, @Security, 0) then
begin
Buffer := AllocMem(ReadBuffer + 1);
FillChar(Start, Sizeof(Start), #0)
{設置console程序的啟動屬性}
with start do
begin
cb := SizeOf(start);
start.lpReserved := nil;
lpDesktop := nil;
lpTitle := nil;
dwX := 0;
dwY := 0;
dwXSize := 0;
dwYSize := 0;
dwXCountChars := 0;
dwYCountChars := 0;
dwFillAttribute := 0;
cbReserved2 := 0;
lpReserved2 := nil;
hStdOutput := WritePipe; //將輸出定向到我們建立的WritePipe上
hStdInput := ReadPipe; //將輸入定向到我們建立的ReadPipe上
hStdError := WritePipe;//將錯誤輸出定向到我們建立的WritePipe上
dwFlags := STARTF_USESTDHANDLES or STARTF_USESHOWWINDOW;
wShowWindow := SW_HIDE;//設置窗口為hide
end;
try
{創建一個子進程,運行console程序}
if CreateProcess(nil, PChar(DOSApp), @Security, @Security, true,
NORMAL_PRIORITY_CLASS,
nil, nil, start, ProcessInfo) then
begin
{等待進程運行結束}
WaitForSingleObject(ProcessInfo.hProcess, INFINITE);
{關閉輸出...開始沒有關掉它,結果如果沒有輸出的話,程序死掉了。}
CloseHandle(WritePipe);
Buf := '';
{讀取console程序的輸出}
repeat
BytesRead := 0;
ReadFile(ReadPipe, Buffer[0], ReadBuffer, BytesRead, nil);
Buffer[BytesRead] := #0;
OemToAnsi(Buffer, Buffer);
Buf := Buf + string(Buffer);
until (BytesRead < ReadBuffer);
SendDebug(Buf);
{按照換行符進行分割,並在Memo中顯示出來}
while pos(#10, Buf) > 0 do
begin
AMemo.Lines.Add(Copy(Buf, 1, pos(#10, Buf) - 1));
Delete(Buf, 1, pos(#10, Buf));
end;
end;
finally
FreeMem(Buffer);
CloseHandle(ProcessInfo.hProcess);
CloseHandle(ProcessInfo.hThread);
CloseHandle(ReadPipe);
end;
end;
end;