JavaProject/ssyx
JavaProject
/
ssyx
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

feat(新增): 线程练习

This commit is contained in:
bunny 2024-04-09 21:18:52 +08:00
parent ef0035dd5f
commit ee1c005f44
8 changed files with 138 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
.idea/misc.xml
View File

@ -14,7 +14,7 @@
</list>
</option>
</component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_18" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

20
service/service-acl/src/test/java/Demo1.java Normal file
View File

@ -0,0 +1,20 @@
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class Demo1 {
/**
* * runAsync
* 不返回返回值
*/
public static void main(String[] args) {
ExecutorService executorService = Executors.newFixedThreadPool(3);
System.out.println("main begin....");
CompletableFuture<Void> completableFuture = CompletableFuture.runAsync(() -> {
System.out.println("当前线程：" + Thread.currentThread().getId());
int result = 1024;
System.out.println("result:" + result);
}, executorService);
System.out.println("main over....");
}
}

25
service/service-acl/src/test/java/Demo2.java Normal file
View File

@ -0,0 +1,25 @@
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class Demo2 {
/**
* * supplyAsync
* 可以指定返回值
*/
public static void main(String[] args) throws ExecutionException, InterruptedException {
ExecutorService executorService = Executors.newFixedThreadPool(3);
System.out.println("main begin....");
CompletableFuture<Integer> completableFuture = CompletableFuture.supplyAsync(() -> {
System.out.println("当前线程：" + Thread.currentThread().getId());
int result = 1024;
System.out.println("result:" + result);
return result;
}, executorService);
// 获取返回结果
Integer value = completableFuture.get();
System.out.println("main over...." + value);
}
}

24
service/service-acl/src/test/java/Demo3.java Normal file
View File

@ -0,0 +1,24 @@
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class Demo3 {
// **whenComplete 和 whenCompleteAsync 的区别：**
// whenComplete：是执行当前任务的线程执行继续执行 whenComplete 的任务。
// whenCompleteAsync：是执行把 whenCompleteAsync 这个任务继续提交给线程池来进行执行。
// 方法不以Async结尾，意味着Action使用相同的线程执行，而Async可能会使用其他线程执行（如果是使用相同的线程池，也可能会被同一个线程选中执行）
public static void main(String[] args) {
ExecutorService executorService = Executors.newFixedThreadPool(3);
System.out.println("main begin....");
CompletableFuture<Integer> completableFuture = CompletableFuture.supplyAsync(() -> {
System.out.println("当前线程：" + Thread.currentThread().getId());
int result = 1024;
System.out.println("result:" + result);
return result;
}, executorService).whenComplete((result, exception) -> {
System.out.println("结果：" + result);
System.out.println(exception.getMessage());
});
System.out.println("main over....");
}
}

29
service/service-acl/src/test/java/Demo4.java Normal file
View File

@ -0,0 +1,29 @@
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class Demo4 {
// 只要上面的任务执行完成，就开始执行thenRun，只是处理完任务后，执行 thenRun的后续操作
public static void main(String[] args) {
ExecutorService executorService = Executors.newFixedThreadPool(3);
// 现成的串行执行
CompletableFuture<Integer> futureA = CompletableFuture.supplyAsync(() -> {
int value = 1024;
System.out.println("1===>" + value);
return 1024;
});
CompletableFuture<Integer> futureB = futureA.thenApplyAsync((result) -> {
System.out.println("2===>" + result);
return result;
}, executorService);
CompletableFuture<Integer> futureC = futureB.thenApplyAsync((result) -> {
System.out.println("3===>" + result);
return result;
}, executorService);
executorService.shutdown();
}
}

33
service/service-acl/src/test/java/Demo5.java Normal file
View File

@ -0,0 +1,33 @@
import lombok.extern.slf4j.Slf4j;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
@Slf4j
public class Demo5 {
public static void main(String[] args) throws ExecutionException, InterruptedException {
ExecutorService executorService = Executors.newFixedThreadPool(3);
// 线程一 的异步执行
CompletableFuture<Integer> futureA = CompletableFuture.supplyAsync(() -> {
int count = 100;
log.info("线程一：{}", count);
return count;
}, executorService);
// 线程二 异步执行
CompletableFuture<Integer> futureB = CompletableFuture.supplyAsync(() -> {
System.out.println(Thread.currentThread().getName() + "--begin..");
int res = 30;
System.out.println("二：" + res);
System.out.println(Thread.currentThread().getName() + "--over..");
return res;
}, executorService);
CompletableFuture<Void> all = CompletableFuture.allOf(futureA, futureB);
all.get();
System.out.println("over....");
}
}

4
service/service-product/src/main/resources/application-dev.yml
View File

@ -3,8 +3,8 @@ server:
bunny:
rabbitmq:
# host: 192.168.1.4
host: 192.168.3.98
host: 192.168.1.4
# host: 192.168.3.98
port: 5672
username: bunny
password: "02120212"

8
service/service-search/src/main/resources/application-dev.yml
View File

@ -3,15 +3,15 @@ server:
bunny:
rabbitmq:
# host: 192.168.1.4
host: 192.168.3.98
host: 192.168.1.4
# host: 192.168.3.98
port: 5672
username: bunny
password: "02120212"
elasticsearch:
#uris: http://192.168.1.4:9200
uris: http://192.168.3.98:9200
uris: http://192.168.1.4:9200
# uris: http://192.168.3.98:9200
nacos:
server-addr: z-bunny.cn:8848