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背景
当异常不在调试的机器上发生的时候,我们可能需要记录异常并且发送给远端服务器。
场景
创建一个移动应用,当用户的某些操作,或者是特定手机上运行出现异常的时候,我们可能需要将异常发送给开发者。
实例
Reporter.java
public interface Reporter {
public void report(Throwable t);
}
ExceptionReporter.java
public class ExceptionReporter {
public static final Reporter PrintException = new Reporter() {
@Override
public void report(Throwable t) {
System.out.println(t.toString());
}
};
private static Reporter defalutReporter = PrintException;
public static Reporter getPrintException(){
return PrintException;
}
public static Reporter getExceptionReporter(){
return defalutReporter;
}
public static Reporter setExceptionReporter(Reporter reporter){
defalutReporter = reporter;
return defalutReporter;
}
}
EmailExceptionReporter.java
public class EmailExceptionReporter implements Reporter {
@Override
public void report(Throwable t) {
sendMessage(t.toString());
}
private void sendMessage(String message){
// Send email
}
}
Test.java
public class Test {
public static void main(String args[]){
try{
int a[] = {0, 0};
System.out.print(a[2]);
}catch (Exception e){
ExceptionReporter.getPrintException().report(e);
}
try{
String b = null;
b.toCharArray();
}catch (Exception e){
ExceptionReporter.setExceptionReporter(new EmailExceptionReporter()).report(e);
}
}
}
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原文地址:http://my.oschina.net/sulliy/blog/488304