我有一个名为" LoginException"的自定义异常。它可能会从任何类中抛出。所以我想在投掷之后做一些建议(例如,打印" Ooops")。所以我决定使用AOP。像这样:
@Aspect
public class LogoutAdvice {
@AfterThrowing(throwing = "e")
public void myAfterThrowing(JoinPoint joinPoint, LoginException e) {
System.out.println("IDS HABBENING");
}
}
代码:
@Transactional
public DynamicTable getTable(int status_id, HttpServletRequest request)
throws HibernateException, LoginException, SQLException {
try {
ResultSet rs = requestDAO.getRequestResultSet(
cookieDAO.get(SESS_ATTR, request), status_id);
DynamicTable dt = new DynamicTable();
String[] columnArray;
LinkedList<String[]> dataList = new LinkedList<String[]>();
ResultSetMetaData rsmd = rs.getMetaData();
int columnCount = rsmd.getColumnCount();
columnArray = new String[columnCount - META_COLUMNS_COUNT];
for (int i = 0; i < columnArray.length; i++) {
columnArray[i] = rsmd.getColumnName(META_COLUMNS_COUNT + i + 1);
}
dt.setTitleArray(columnArray);
while (rs.next()) {
String[] dataArray = new String[columnArray.length];
for (int i = 0; i < columnArray.length; i++) {
dataArray[i] = ParamUtil.toString(rs
.getObject(META_COLUMNS_COUNT + i + 1));
}
dataList.add(dataArray);
}
dt.setDataList(dataList);
return dt;
} catch (SQLException e) {
String message = e.getMessage();
String[] errorsArray = AuthErrorsConst.ERROR;
for (int i = 0; i < errorsArray.length; i++) {
if (message.contains(errorsArray[i])) {
throw new LoginException(); // LOOK AT THIS
}
}
throw e;
}
}
我该怎么做?
答案 0 :(得分:7)
确保抛出异常
catch (SQLException e) {
String message = e.getMessage();
String[] errorsArray = AuthErrorsConst.ERROR;
for (int i = 0; i < errorsArray.length; i++) {
if (message.contains(errorsArray[i])) {
System.out.println("throwing LoginException")// NEW
throw new LoginException(); // LOOK AT THIS
}
}
throw e;
}
关于
@Aspect
public class LogoutAdvice {
@AfterThrowing(throwing = "e")
public void myAfterThrowing(JoinPoint joinPoint, LoginException e) {
System.out.println("IDS HABBENING");
}
}
确保 Spring允许使用@Aspect
和此外它能够扫描您的LogoutAdvice
方面,通常我会告诉他们如何
@Aspect
@Component// to be scanned by Spring
public class LogoutAdvice {
将@AfterThrowing
更改为
@AfterThrowing(pointcut = "execution(* *.*(..))",throwing = "e")
答案 1 :(得分:1)
在@AfterThrowing
注释
因此,您的注释需要看起来像下面的
@AfterThrowing(pointcut = "execution(public * *(..))",throwing = "e")
请参阅以下链接以获得详细说明:
http://www.compiletimeerror.com/2013/05/spring-aop-after-throwing-advice.html#.VCAnsvmSw2c
答案 2 :(得分:0)
1)检查LoginException
类,因为它应该是一个合适的异常类。
2)在catch块中抛出异常对象“e”
3)
@Aspect
@Component
public class LogoutAdvice {
@AfterThrowing(pointcut = "execution (* * com..*(..)", throwing = "e")
public void myAfterThrowing(JoinPoint joinPoint, LoginException e) {
System.out.println("IDS HABBENING");
}
}
4)在spring配置文件中
<aop:aspectj-autoproxy/>
那就够了。