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302a6987
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体验新版 GitCode,发现更多精彩内容 >>
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302a6987
编写于
8月 11, 2019
作者:
武汉红喜
浏览文件
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电子邮件补丁
差异文件
concurrent test
上级
81b65259
变更
4
隐藏空白更改
内联
并排
Showing
4 changed file
with
157 addition
and
0 deletion
+157
-0
whatsmars-common/src/test/java/org/hongxi/java/util/concurrent/CompletionServiceTest.java
...rg/hongxi/java/util/concurrent/CompletionServiceTest.java
+32
-0
whatsmars-common/src/test/java/org/hongxi/java/util/concurrent/CyclicBarrierTest.java
...va/org/hongxi/java/util/concurrent/CyclicBarrierTest.java
+50
-0
whatsmars-common/src/test/java/org/hongxi/java/util/concurrent/ExchangerTest.java
...t/java/org/hongxi/java/util/concurrent/ExchangerTest.java
+38
-0
whatsmars-common/src/test/java/org/hongxi/java/util/concurrent/SemaphoreTest.java
...t/java/org/hongxi/java/util/concurrent/SemaphoreTest.java
+37
-0
未找到文件。
whatsmars-common/src/test/java/org/hongxi/java/util/concurrent/CompletionServiceTest.java
0 → 100644
浏览文件 @
302a6987
package
org.hongxi.java.util.concurrent
;
import
java.util.Random
;
import
java.util.concurrent.*
;
/**
* @author shenhongxi 2019/8/11
*/
public
class
CompletionServiceTest
{
public
static
void
main
(
String
[]
args
)
{
ExecutorService
executor
=
Executors
.
newFixedThreadPool
(
10
);
CompletionService
<
Integer
>
completionService
=
new
ExecutorCompletionService
<>(
executor
);
for
(
int
i
=
1
;
i
<=
10
;
i
++)
{
final
int
seq
=
i
;
completionService
.
submit
(()
->
{
Thread
.
sleep
(
new
Random
().
nextInt
(
5000
));
return
seq
;
});
}
for
(
int
i
=
0
;
i
<
10
;
i
++)
{
try
{
System
.
out
.
println
(
completionService
.
take
().
get
());
}
catch
(
InterruptedException
e
)
{
e
.
printStackTrace
();
}
catch
(
ExecutionException
e
)
{
e
.
printStackTrace
();
}
}
executor
.
shutdown
();
}
}
whatsmars-common/src/test/java/org/hongxi/java/util/concurrent/CyclicBarrierTest.java
0 → 100644
浏览文件 @
302a6987
package
org.hongxi.java.util.concurrent
;
import
java.util.concurrent.CyclicBarrier
;
import
java.util.concurrent.ExecutorService
;
import
java.util.concurrent.Executors
;
public
class
CyclicBarrierTest
{
public
static
void
main
(
String
[]
args
)
{
ExecutorService
executorService
=
Executors
.
newCachedThreadPool
();
final
CyclicBarrier
cb
=
new
CyclicBarrier
(
3
);
for
(
int
i
=
0
;
i
<
3
;
i
++)
{
executorService
.
execute
(()
->
{
try
{
Thread
.
sleep
((
long
)
(
Math
.
random
()
*
10000
));
System
.
out
.
println
(
"线程"
+
Thread
.
currentThread
().
getName
()
+
"即将到达集合地点1,当前已有"
+
(
cb
.
getNumberWaiting
()
+
1
)
+
"个已经到达,"
+
(
cb
.
getNumberWaiting
()
==
2
?
"都到齐了,继续走啊"
:
"正在等候"
));
cb
.
await
();
Thread
.
sleep
((
long
)
(
Math
.
random
()
*
10000
));
System
.
out
.
println
(
"线程"
+
Thread
.
currentThread
().
getName
()
+
"即将到达集合地点2,当前已有"
+
(
cb
.
getNumberWaiting
()
+
1
)
+
"个已经到达,"
+
(
cb
.
getNumberWaiting
()
==
2
?
"都到齐了,继续走啊"
:
"正在等候"
));
cb
.
await
();
Thread
.
sleep
((
long
)
(
Math
.
random
()
*
10000
));
System
.
out
.
println
(
"线程"
+
Thread
.
currentThread
().
getName
()
+
"即将到达集合地点3,当前已有"
+
(
cb
.
getNumberWaiting
()
+
1
)
+
"个已经到达,"
+
(
cb
.
getNumberWaiting
()
==
2
?
"都到齐了,继续走啊"
:
"正在等候"
));
cb
.
await
();
}
catch
(
Exception
e
)
{
e
.
printStackTrace
();
}
});
}
executorService
.
shutdown
();
}
}
\ No newline at end of file
whatsmars-common/src/test/java/org/hongxi/java/util/concurrent/ExchangerTest.java
0 → 100644
浏览文件 @
302a6987
package
org.hongxi.java.util.concurrent
;
import
java.util.concurrent.Exchanger
;
import
java.util.concurrent.ExecutorService
;
import
java.util.concurrent.Executors
;
public
class
ExchangerTest
{
public
static
void
main
(
String
[]
args
)
{
ExecutorService
executorService
=
Executors
.
newCachedThreadPool
();
final
Exchanger
<
String
>
exchanger
=
new
Exchanger
<
String
>();
executorService
.
execute
(()
->
{
try
{
String
data1
=
"zxx"
;
System
.
out
.
println
(
"线程"
+
Thread
.
currentThread
().
getName
()
+
"正在把数据"
+
data1
+
"换出去"
);
Thread
.
sleep
((
long
)
(
Math
.
random
()
*
10000
));
String
data2
=
exchanger
.
exchange
(
data1
);
System
.
out
.
println
(
"线程"
+
Thread
.
currentThread
().
getName
()
+
"换回的数据为"
+
data2
);
}
catch
(
Exception
e
)
{
e
.
printStackTrace
();
}
});
executorService
.
execute
(()
->
{
try
{
String
data1
=
"lhm"
;
System
.
out
.
println
(
"线程"
+
Thread
.
currentThread
().
getName
()
+
"正在把数据"
+
data1
+
"换出去"
);
Thread
.
sleep
((
long
)
(
Math
.
random
()
*
10000
));
String
data2
=
exchanger
.
exchange
(
data1
);
System
.
out
.
println
(
"线程"
+
Thread
.
currentThread
().
getName
()
+
"换回的数据为"
+
data2
);
}
catch
(
Exception
e
)
{
e
.
printStackTrace
();
}
});
}
}
\ No newline at end of file
whatsmars-common/src/test/java/org/hongxi/java/util/concurrent/SemaphoreTest.java
0 → 100644
浏览文件 @
302a6987
package
org.hongxi.java.util.concurrent
;
import
java.util.concurrent.ExecutorService
;
import
java.util.concurrent.Executors
;
import
java.util.concurrent.Semaphore
;
/**
* @author shenhongxi 2019/8/11
*/
public
class
SemaphoreTest
{
public
static
void
main
(
String
[]
args
)
{
ExecutorService
executorService
=
Executors
.
newCachedThreadPool
();
final
Semaphore
semaphore
=
new
Semaphore
(
3
);
for
(
int
i
=
0
;
i
<
10
;
i
++)
{
executorService
.
execute
(()
->
{
try
{
semaphore
.
acquire
();
}
catch
(
InterruptedException
e1
)
{
e1
.
printStackTrace
();
}
System
.
out
.
println
(
"线程"
+
Thread
.
currentThread
().
getName
()
+
"进入,当前已有"
+
(
3
-
semaphore
.
availablePermits
())
+
"个并发"
);
try
{
Thread
.
sleep
((
long
)
(
Math
.
random
()
*
10000
));
}
catch
(
InterruptedException
e
)
{
e
.
printStackTrace
();
}
System
.
out
.
println
(
"线程"
+
Thread
.
currentThread
().
getName
()
+
"即将离开"
);
semaphore
.
release
();
//下面代码有时候执行不准确,因为其没有和上面的代码合成原子单元
System
.
out
.
println
(
"线程"
+
Thread
.
currentThread
().
getName
()
+
"已离开,当前已有"
+
(
3
-
semaphore
.
availablePermits
())
+
"个并发"
);
});
}
}
}
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