add:异步编程

transactional-demo/pom.xml

@@ -30,6 +30,11 @@
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
         </dependency>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>20.0</version>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-jdbc</artifactId>

transactional-demo/src/main/java/nl/org/transactionaldemo/server/JDK新特性/stream流/StreamDemo.java

@@ -4,6 +4,7 @@ import com.alibaba.fastjson.JSONObject;
 
 import java.util.*;
 import java.util.function.BiConsumer;
+import java.util.function.Function;
 import java.util.function.Predicate;
 import java.util.stream.Collectors;
 
@@ -14,15 +15,27 @@ import java.util.stream.Collectors;
 public class StreamDemo {
     public static void main(String[] args) {
         List<DataEntity> list = extracted(100);
-        //1.字段汇总
+
-        Set<String> collect = list.stream()
+        for (DataEntity entity : list) {
-                .map(DataEntity::getName).collect(Collectors.toSet());
+            String classNo = entity.getClassNo();
+        }
+        //1.字段汇总 a->a.getName()  DataEntity::getName
+        Set<Object> collect = list.stream()
+                .map(new Function<DataEntity, Object>() {
+                    @Override
+                    public Object apply(DataEntity dataEntity) {
+                        return dataEntity.getName();
+                    }
+                }).collect(Collectors.toSet());
         //2.条件过滤
         List<DataEntity> collect1 = list.stream().filter(dataEntity -> dataEntity.getClassNo().equals("NO.3")).collect(Collectors.toList());
         //3.分组
         Map<String, List<DataEntity>> map = list.stream().collect(Collectors.groupingBy(dataEntity -> dataEntity.getClassNo()));
         //4.转换
+        //list;->point_code = '001'
         Map<String, DataEntity> map2 = list.stream().collect(HashMap::new, (k, v) -> k.put(v.getName(), v), HashMap::putAll);
+        DataEntity dataEntity = map2.get("e4563a6b-94c1-4817-97aa-d66a8b21640f");
+        System.out.println(dataEntity.toString());
 
     }
 

transactional-demo/src/main/java/nl/org/transactionaldemo/server/JDK新特性/函数式接口/FuntureDemo.java

@@ -13,21 +13,23 @@ public class FuntureDemo {
         numProcess.process(3);
 
         //2.正常业务处理：文字处理业务中需要引入数字处理业务
-        StringProcess process = new StringProcess();
+        StringProcess sringprocess = new StringProcess();
-        process.process();
+        sringprocess.process();
+        // NumProcess numProcess = new NumProcess();
+        //        return "NO."+numProcess.process(3);
 
         //3.以参数的形式带入
-        process.process(new NumProcess());
+        sringprocess.process(new NumProcess());
 
         //4.匿名内部类
-        process.process(new Process() {
+        sringprocess.process(new Process() {
             @Override
             public Object process(Object o) {
                 return (Integer)o*2;
             }
         });
         //5.函数式接口
-        process.process((a)-> ((Integer) a)*2);
+        sringprocess.process((a)-> ((Integer) a)*2);
 
     }
 

transactional-demo/src/main/java/nl/org/transactionaldemo/server/事务/编程事务/TransationDemo.java

@@ -7,6 +7,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.transaction.PlatformTransactionManager;
 import org.springframework.transaction.TransactionDefinition;
 import org.springframework.transaction.TransactionStatus;
+import org.springframework.transaction.annotation.Transactional;
 import org.springframework.transaction.support.DefaultTransactionDefinition;
 import org.springframework.util.CollectionUtils;
 import java.util.*;
@@ -28,7 +29,7 @@ public class TransationDemo {
     @Autowired
     private PlatformTransactionManager txManager;
 
-//    @Transactional
+    @Transactional
     public void creteTask(JSONArray request){
 
         List<TransactionStatus> statusCollent = new ArrayList<>();
@@ -71,7 +72,7 @@ public class TransationDemo {
     }
 }
 
-//封装参考
+
 class TransactionManagerUtil{
 
     public static void main(String[] args) {
@@ -96,6 +97,10 @@ class TransactionManagerUtil{
         PlatformTransactionManager txManager = null; //SpringContextHolder.getBean(PlatformTransactionManager.class);
         Map<String, TransactionStatus> statusMap = new HashMap<>();
         List<TransactionStatus> errTask;
+
+        DefaultTransactionDefinition init = new DefaultTransactionDefinition();
+        init.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRES_NEW);
+        TransactionStatus initStatus = txManager.getTransaction(init);
         try {
             //创建所有事务集合
             Consumer<String> allTransactionConsumer = task -> {
@@ -122,6 +127,7 @@ class TransactionManagerUtil{
                     txManager.commit(value);
                 }
             }
+            txManager.commit(initStatus);
         }
         return null;
     }