Java 异常处理
异常丢失
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21 | public class LostException {
public static void f() throws ImportException {
throw new ImportException("重要的异常");
}
public static void g() throws CommonException {
throw new CommonException();
}
public static void main(String[] args) {
try{
try{
f();
}finally {
g();
}
}catch(Exception e) {
e.printStackTrace();
}
}
}
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这里我们会丢失 ImportException的catch
正确的处理方法：
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23 | public class LostException {
public static void f() throws ImportException {
throw new ImportException("重要的异常");
}
public static void g() throws CommonException {
throw new CommonException();
}
public static void main(String[] args) {
try{
try{
f();
}catch(Exception e) {
e.printStackTrace();
}finally {
g();
}
}catch(Exception e) {
e.printStackTrace();
}
}
}
|