使用android写的程序,在个别手机上出现空指针异常,很是不解为何没有正常捕获处理,等待高手解答
源码: public boolean register(String mima){
try{
String mingWen = decrypt(mima); String IMEI = getIMEI();
mIsRegister = MEI.equals(mingWen);
}catch(Exception e){
e.printStackTrace();
mIsRegister = false;
}
return mIsRegister;
}
private String decrypt(String miString) {
byte[] miByte = Base64.decode(miString);
byte[] mingByte = rsa.decrypt(miByte);
return new String(mingByte); }出错log java.lang.NullPointerException
at java.lang.String.<init>(String.java:198)
at com.anxing.englishgameII.Register.decrypt(Register.java:116)
at com.anxing.englishgameII.Register.register(Register.java:84)
at com.anxing.englishgameII.GameApp.onCreate(GameApp.java:48)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1045)
源码: public boolean register(String mima){
try{
String mingWen = decrypt(mima); String IMEI = getIMEI();
mIsRegister = MEI.equals(mingWen);
}catch(Exception e){
e.printStackTrace();
mIsRegister = false;
}
return mIsRegister;
}
private String decrypt(String miString) {
byte[] miByte = Base64.decode(miString);
byte[] mingByte = rsa.decrypt(miByte);
return new String(mingByte); }出错log java.lang.NullPointerException
at java.lang.String.<init>(String.java:198)
at com.anxing.englishgameII.Register.decrypt(Register.java:116)
at com.anxing.englishgameII.Register.register(Register.java:84)
at com.anxing.englishgameII.GameApp.onCreate(GameApp.java:48)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1045)
可以捕获一切exception
//没学过j2me,你这里报异常应该是String mingWen吧,只要你在判断一下if(minWen!=null){你的语句}