内容简介
代码中经常会在catch 或者finally中再次抛出异常,传给调用者(如文件上传处理工具类),我整理了一下代码执行顺序和调用者捕获的异常。
代码示例
@Test
public void companyAccountKeyInitRunnerTest() {
try {
aaaa();
} catch (Exception e) {
log.error("catch=====",e.getMessage(),e);
}
}
public void aaaa() {
try {
log.error("try=====");
throw new CheckedException("try=====Exception");
} catch (Exception e) {
log.error("catch=====");
throw new CheckedException("catch=====Exception");
} finally {
log.error("finally=====");
throw new CheckedException("finally=====Exception");
}
}
执行结果:
09:25:53.305 [main] ERROR com.taikang.cloud.healthtest.TkCloudHealthAdminApplicationTest - try=====
09:25:53.305 [main] ERROR com.taikang.cloud.healthtest.TkCloudHealthAdminApplicationTest - catch=====
09:25:53.305 [main] ERROR com.taikang.cloud.healthtest.TkCloudHealthAdminApplicationTest - finally=====
09:25:53.311 [main] ERROR com.taikang.cloud.healthtest.TkCloudHealthAdminApplicationTest - catch=====
com.taikang.cloud.common.core.exception.CheckedException: finally=====Exception
at com.taikang.cloud.healthtest.TkCloudHealthAdminApplicationTest.aaaa(TkCloudHealthAdminApplicationTest.java:51)
at com.taikang.cloud.healthtest.TkCloudHealthAdminApplicationTest.companyAccountKeyInitRunnerTest(TkCloudHealthAdminApplicationTest.java:32)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
分析
1 当catch或者finally 也抛异常后会在走一次catch
2 如果finally抛异常,调用者捕获的是finally的异常(不管catch有没有抛异常)
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