基本思路就是定义三个类，继承异常的父类，然后在需要抛出异常的地方，throws一下就可以了，示例如下：
public class CatchMultiException {
public static void main(String[] args) throws Exception {
try {
test(2)
} catch (Exception e) {
if (e instanceof TestAException || e instanceof TestBException
|| e instanceof TestCException) {
e.printStackTrace()
} else {
throw e
}
}
}
public static void test(int a) throws TestAException, TestBException,
TestCException {
if (a == 0) {
throw new TestAException()//抛出第一个异常
}
if (a == 1) {
throw new TestBException()//抛出第二个异常
}
if (a == 2) {
throw new TestCException()//抛出第三个异常
}
}
}
class TestAException extends Exception {//继承父类Exception
private static final long serialVersionUID = 1L
}
class TestBException extends Exception {
private static final long serialVersionUID = 1L
}
class TestCException extends Exception {
private static final long serialVersionUID = 1L
}
//例子一import java.util.Random
public class Test
{
public static void main(String[] args)
{
final Random r=new Random()
final Exception[] exs=
{
new Exception1(),
new Exception2(),
new Exception("Exception")
}
for(int i=0i<5i++)
{
try
{
throw exs[r.nextInt(exs.length)]
}
catch(Exception1 ex)
{
System.out.println(ex)
}
catch(Exception2 ex)
{
System.out.println(ex)
}
catch(Exception ex)
{
System.out.println(ex)
}
}
}
}
class Exception1 extends Exception
{
@Override
public String toString()
{
return "Exception1"
}
}
class Exception2 extends Exception
{
@Override
public String toString()
{
return "Exception2"
}
}
//例子二（需较新的java版本才能支持）
import java.util.Random
public class Test
{
public static void main(String[] args)
{
final Random r=new Random()
final Exception[] exs=
{
new Exception1(),
new Exception3(),
new Exception2(),
new Exception("Exception")
}
for(int i=0i<5i++)
{
try
{
throw exs[r.nextInt(exs.length)]
}
catch(Exception3|Exception1|Exception2 ex)
{
System.out.println(ex)
}
catch(Exception ex)
{
System.out.println(ex)
}
}
}
}
class Exception1 extends Exception
{
@Override
public String toString()
{
return "Exception1"
}
}
class Exception2 extends Exception
{
@Override
public String toString()
{
return "Exception2"
}
}
class Exception3 extends Exception
{
@Override
public String toString()
{
return "Exception3"
}
}
