🎨 #3640 【微信支付】使用HttpClient发送http请求时调整为使用连接池的形式

weixin-java-pay/src/test/java/com/github/binarywang/wxpay/service/impl/ConnectionPoolUsageExampleTest.java

@@ -0,0 +1,61 @@
+package com.github.binarywang.wxpay.service.impl;
+
+import com.github.binarywang.wxpay.config.WxPayConfig;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+/**
+ * 演示连接池功能的示例测试
+ */
+public class ConnectionPoolUsageExampleTest {
+
+  @Test
+  public void demonstrateConnectionPoolUsage() throws Exception {
+    // 1. 创建配置并设置连接池参数
+    WxPayConfig config = new WxPayConfig();
+    config.setAppId("wx123456789");
+    config.setMchId("1234567890");
+    config.setMchKey("32位商户密钥32位商户密钥32位商户密钥");
+    
+    // 设置连接池参数（可选，有默认值）
+    config.setMaxConnTotal(50);  // 最大连接数，默认20
+    config.setMaxConnPerRoute(20); // 每个路由最大连接数，默认10
+    
+    // 2. 初始化连接池
+    CloseableHttpClient pooledClient = config.initHttpClient();
+    Assert.assertNotNull(pooledClient);
+    
+    // 3. 创建支付服务实例
+    WxPayServiceApacheHttpImpl payService = new WxPayServiceApacheHttpImpl();
+    payService.setConfig(config);
+    
+    // 4. 现在所有的HTTP请求都会使用连接池
+    // 对于非SSL请求，会复用同一个HttpClient实例
+    CloseableHttpClient client1 = payService.createHttpClient(false);
+    CloseableHttpClient client2 = payService.createHttpClient(false);
+    Assert.assertSame(client1, client2, "非SSL请求应该复用同一个客户端实例");
+    
+    // 对于SSL请求，也会复用同一个SSL HttpClient实例（需要配置证书后）
+    System.out.println("连接池配置成功！");
+    System.out.println("最大连接数：" + config.getMaxConnTotal());
+    System.out.println("每路由最大连接数：" + config.getMaxConnPerRoute());
+  }
+  
+  @Test
+  public void demonstrateDefaultConfiguration() throws Exception {
+    // 使用默认配置的示例
+    WxPayConfig config = new WxPayConfig();
+    config.setAppId("wx123456789");
+    config.setMchId("1234567890");
+    config.setMchKey("32位商户密钥32位商户密钥32位商户密钥");
+    
+    // 不设置连接池参数，使用默认值
+    CloseableHttpClient client = config.initHttpClient();
+    Assert.assertNotNull(client);
+    
+    // 验证默认配置
+    Assert.assertEquals(config.getMaxConnTotal(), 20, "默认最大连接数应该是20");
+    Assert.assertEquals(config.getMaxConnPerRoute(), 10, "默认每路由最大连接数应该是10");
+  }
+}

weixin-java-pay/src/test/java/com/github/binarywang/wxpay/service/impl/WxPayServiceApacheHttpImplConnectionPoolTest.java

@@ -0,0 +1,86 @@
+package com.github.binarywang.wxpay.service.impl;
+
+import com.github.binarywang.wxpay.config.WxPayConfig;
+import com.github.binarywang.wxpay.exception.WxPayException;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+/**
+ * 测试WxPayServiceApacheHttpImpl的连接池功能
+ */
+public class WxPayServiceApacheHttpImplConnectionPoolTest {
+
+  @Test
+  public void testHttpClientConnectionPool() throws Exception {
+    WxPayConfig config = new WxPayConfig();
+    config.setAppId("test-app-id");
+    config.setMchId("test-mch-id");
+    config.setMchKey("test-mch-key");
+    
+    // 测试初始化连接池
+    CloseableHttpClient httpClient1 = config.initHttpClient();
+    Assert.assertNotNull(httpClient1, "HttpClient should not be null");
+    
+    // 再次获取，应该返回同一个实例
+    CloseableHttpClient httpClient2 = config.getHttpClient();
+    Assert.assertSame(httpClient1, httpClient2, "Should return the same HttpClient instance");
+    
+    // 验证连接池配置
+    WxPayServiceApacheHttpImpl service = new WxPayServiceApacheHttpImpl();
+    service.setConfig(config);
+    
+    // 测试不使用SSL的情况下应该使用连接池
+    CloseableHttpClient clientForNonSSL = service.createHttpClient(false);
+    Assert.assertSame(httpClient1, clientForNonSSL, "Should use pooled client for non-SSL requests");
+  }
+  
+  @Test
+  public void testSslHttpClientConnectionPool() throws Exception {
+    WxPayConfig config = new WxPayConfig();
+    config.setAppId("test-app-id");
+    config.setMchId("test-mch-id");
+    config.setMchKey("test-mch-key");
+    
+    // 为了测试SSL客户端，我们需要设置一些基本的SSL配置
+    // 注意：在实际使用中需要提供真实的证书
+    try {
+      CloseableHttpClient sslClient1 = config.initSslHttpClient();
+      Assert.assertNotNull(sslClient1, "SSL HttpClient should not be null");
+      
+      CloseableHttpClient sslClient2 = config.getSslHttpClient();
+      Assert.assertSame(sslClient1, sslClient2, "Should return the same SSL HttpClient instance");
+      
+      WxPayServiceApacheHttpImpl service = new WxPayServiceApacheHttpImpl();
+      service.setConfig(config);
+      
+      // 测试使用SSL的情况下应该使用SSL连接池
+      CloseableHttpClient clientForSSL = service.createHttpClient(true);
+      Assert.assertSame(sslClient1, clientForSSL, "Should use pooled SSL client for SSL requests");
+      
+    } catch (WxPayException e) {
+      // SSL初始化失败是预期的，因为我们没有提供真实的证书
+      // 这里主要是测试代码路径是否正确
+      Assert.assertTrue(e.getMessage().contains("证书") || e.getMessage().contains("商户号"), 
+          "Should fail with certificate or merchant ID related error");
+    }
+  }
+  
+  @Test
+  public void testConnectionPoolConfiguration() throws Exception {
+    WxPayConfig config = new WxPayConfig();
+    config.setAppId("test-app-id");
+    config.setMchId("test-mch-id");
+    config.setMchKey("test-mch-key");
+    config.setMaxConnTotal(50);
+    config.setMaxConnPerRoute(20);
+    
+    CloseableHttpClient httpClient = config.initHttpClient();
+    Assert.assertNotNull(httpClient, "HttpClient should not be null");
+    
+    // 验证配置值是否正确设置
+    Assert.assertEquals(config.getMaxConnTotal(), 50, "Max total connections should be 50");
+    Assert.assertEquals(config.getMaxConnPerRoute(), 20, "Max connections per route should be 20");
+  }
+}