设置restTemplate连接池大小，解决连接池不足的问题

novel-admin/src/main/resources/application.yml

@@ -36,8 +36,8 @@ spring:
     type: com.alibaba.druid.pool.DruidDataSource
     driverClassName: com.mysql.jdbc.Driver
     url: jdbc:mysql://127.0.0.1:3306/books?useUnicode=true&characterEncoding=utf8&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=Asia/Shanghai
-    username: books
+    username: root
-    password: books
+    password: test123456
     #password:
     initialSize: 1
     minIdle: 3

novel-front/src/main/java/xyz/zinglizingli/common/utils/RestTemplateUtil.java

@@ -3,10 +3,15 @@ package xyz.zinglizingli.common.utils;
 import lombok.SneakyThrows;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.codec.Charsets;
+import org.apache.http.config.Registry;
+import org.apache.http.config.RegistryBuilder;
+import org.apache.http.conn.socket.ConnectionSocketFactory;
+import org.apache.http.conn.socket.PlainConnectionSocketFactory;
 import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
 import org.apache.http.conn.ssl.TrustStrategy;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClients;
+import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
@@ -43,9 +48,21 @@ public class RestTemplateUtil {
 
             SSLConnectionSocketFactory csf = new SSLConnectionSocketFactory(sslContext);
 
-            CloseableHttpClient httpClient = HttpClients.custom()
+            Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
-                    .setSSLSocketFactory(csf)
+                    .register("http", PlainConnectionSocketFactory.getSocketFactory())
+                    .register("https", csf)
                     .build();
+            PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager(registry);
+
+            //连接池大小
+            connectionManager.setMaxTotal(1000);
+            //最大并发连接
+            connectionManager.setDefaultMaxPerRoute(300);
+
+            CloseableHttpClient httpClient = HttpClients.custom()
+                    .setConnectionManager(connectionManager)
+                    .build();
+
 
             HttpComponentsClientHttpRequestFactory requestFactory =
                     new HttpComponentsClientHttpRequestFactory();

script/crawlbook/application.yml

@@ -1,7 +1,7 @@
 server: {port: 8083}
 spring:
-  datasource: {url: 'jdbc:mysql://127.0.0.1:3306/books?useUnicode=true&characterEncoding=utf-8&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=Asia/Shanghai',
+  datasource: {url: 'jdbc:mysql://47.106.243.172:3306/books?useUnicode=true&characterEncoding=utf-8&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=Asia/Shanghai',
-    username: root, password: test123456}
+    username: books, password: books!8888}
 mybatis:
   mapper-locations: classpath:mybatis/mapping/*.xml
   type-aliases-package: xyz.zinglizingli.books.po