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public
聽Object聽readObject(File聽file)
聽聽聽聽{
聽聽聽聽聽聽聽聽Object聽o聽
=
聽
null
;
聽聽聽聽聽聽聽聽
if
聽(file.exists())
聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽ObjectInputStream聽ois聽
=
聽
null
;
聽聽聽聽聽聽聽聽聽聽聽聽
try
聽聽聽聽聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽ois聽
=
聽
new
聽ObjectInputStream(
new
聽FileInputStream(file));
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽o聽
=
聽ois.readObject();
聽聽聽聽聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽聽聽聽聽
catch
聽(Throwable聽e)
聽聽聽聽聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽e.printStackTrace();
聽聽聽聽聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽聽聽聽聽
finally
聽聽聽聽聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽
if
聽(ois聽
!=
聽
null
)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽
try
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽ois.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽
catch
聽(IOException聽e)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽e.printStackTrace();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽聽聽聽聽}聽聽聽聽聽聽聽聽聽聽聽聽
聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽
return
聽o;
聽聽聽聽}
蹇界劧涓澶╂祴璇曚漢鍛樿仈緋繪垜璇磋繖閮ㄥ垎浠g爜瀵艱嚧緋葷粺鏃犳硶鍚姩錛屽師鍥犱粎浠呮槸鍥犱負(fù)璁╄閮ㄥ垎浠g爜涓嶆柇鐨勫鐞嗕竴涓負(fù)搴忓垪鍖栨枃浠訛紒
鎴戜粩緇嗗垎鏋愪竴涓嬩唬鐮侊紝娌℃湁闂鍛錛屽弽搴忓垪鍖栧け璐ュ氨鐩存帴鍏抽棴浜?jiǎn)ois瀵硅薄錛屼笉鍙兘閫犳垚璧勬簮娉勬紡錛屼簬鏄敤鍗曟璺熻釜鐨勬柟寮?br />鏌ョ湅澶勭悊闈炴硶鏂囦歡鐨勮緇嗘儏鍐碉細(xì)
1銆佸垱寤篎ileInputStream 娌℃湁闂
2銆佸垱寤篛bjectInputStream澶辮觸 娌℃湁闂
3銆佽繘鍏atch鍧楋紝鎵撳嵃鍫嗘爤 娌℃湁闂
4銆佽繘鍏innaly鍧楋紝if (ois != null)涓篺alse錛岃繖鏃舵剰璇嗗埌鍑洪棶棰樹簡(jiǎn)
鍘熸潵鍒涘緩FileInputStream鎴愬姛錛屾鏃跺凡緇忕敵璇蜂簡(jiǎn)璧勬簮錛屼絾鍦ㄥ悗緇垱寤篛bjectInputStream鏃跺け璐ワ紝浣嗘鏃跺張娌℃湁淇濆瓨FileInputStream
鐨勫紩鐢紝鏃犳硶閲婃斁璧勬簮錛屾渶緇堝鑷翠簡(jiǎn)璧勬簮娉勬紡銆傜湅鏉ュ湪浠ュ悗鐨?font color="#0000ff">IO鐨勭紪紼嬩腑涓瀹氳淇濆瓨鍩烘湰嫻佺殑寮曠敤錛屽惁鍒欏湪綾諱技涓婇潰鐨勬儏鍐?br />鍦ㄨ漿鎹㈡祦澶辮觸鍚庯紝鏃犳硶瀹夊叏鐨勯噴鏀捐祫婧愶紒
涓嬮潰涓轟慨鏀瑰悗鐨勪唬鐮侊細(xì)
聽public聽Object聽readObject(File聽file)
聽聽聽聽{
聽聽聽聽聽聽聽聽Object聽o聽=聽null;
聽聽聽聽聽聽聽聽if聽(file.exists())
聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽FileInputStream聽fis聽=聽null;
聽聽聽聽聽聽聽聽聽聽聽聽ObjectInputStream聽ois聽=聽null;
聽聽聽聽聽聽聽聽聽聽聽聽try
聽聽聽聽聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽fis聽=聽new聽FileInputStream(file);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽ois聽=聽new聽ObjectInputStream(fis);
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽o聽=聽ois.readObject();
聽聽聽聽聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽聽聽聽聽catch聽(Throwable聽e)
聽聽聽聽聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽e.printStackTrace();
聽聽聽聽聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽聽聽聽聽finally
聽聽聽聽聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽if聽(fis聽!=聽null)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽try
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽fis.close();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽catch聽(IOException聽e)
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽{
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽e.printStackTrace();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽聽聽聽聽}聽聽聽聽聽聽聽聽聽聽聽聽
聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽return聽o;
聽聽聽聽}

]]>
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