Support Spring Boot 4 auto configuration

.artifacts

@@ -95,6 +95,7 @@ dubbo-spring-boot-actuator-autoconfigure
 dubbo-spring-boot-actuator-compatible
 dubbo-spring-boot-autoconfigure
 dubbo-spring-boot-3-autoconfigure
+dubbo-spring-boot-4-autoconfigure
 dubbo-spring-boot-autoconfigure-compatible
 dubbo-spring-boot-actuator-autoconfigure-compatible
 dubbo-spring-boot-compatible
@@ -103,6 +104,7 @@ dubbo-tracing-otel-zipkin-spring-boot-starter
 dubbo-tracing-otel-otlp-spring-boot-starter
 dubbo-observability-spring-boot-starter
 dubbo-spring-boot-starter
+dubbo-spring-boot-starter4
 dubbo-spring-boot-starters
 dubbo-spring-boot-interceptor
 dubbo-nacos-spring-boot-starter

dubbo-distribution/dubbo-bom/pom.xml

@@ -498,6 +498,11 @@
         <artifactId>dubbo-spring-boot-3-autoconfigure</artifactId>
         <version>${project.version}</version>
       </dependency>
+      <dependency>
+        <groupId>org.apache.dubbo</groupId>
+        <artifactId>dubbo-spring-boot-4-autoconfigure</artifactId>
+        <version>${project.version}</version>
+      </dependency>
       <dependency>
         <groupId>org.apache.dubbo</groupId>
         <artifactId>dubbo-spring-boot-compatible</artifactId>
@@ -519,6 +524,11 @@
         <artifactId>dubbo-spring-boot-starter</artifactId>
         <version>${project.version}</version>
       </dependency>
+      <dependency>
+        <groupId>org.apache.dubbo</groupId>
+        <artifactId>dubbo-spring-boot-starter4</artifactId>
+        <version>${project.version}</version>
+      </dependency>
       <dependency>
         <groupId>org.apache.dubbo</groupId>
         <artifactId>dubbo-spring-boot</artifactId>

dubbo-spring-boot-project/dubbo-spring-boot-3-autoconfigure/src/main/java/org/apache/dubbo/spring/boot/autoconfigure/SpringBoot3Condition.java

@@ -23,10 +23,24 @@
 
 public class SpringBoot3Condition implements Condition {
 
-    public static boolean IS_SPRING_BOOT_3 = SpringBootVersion.getVersion().charAt(0) >= '3';
+    public static boolean IS_SPRING_BOOT_3 = getSpringBootMajorVersion() == 3;
 
     @Override
     public boolean matches(ConditionContext context, AnnotatedTypeMetadata metadata) {
         return IS_SPRING_BOOT_3;
     }
+
+    private static int getSpringBootMajorVersion() {
+        String version = SpringBootVersion.getVersion();
+        if (version == null || version.isEmpty()) {
+            return -1;
+        }
+        int separator = version.indexOf('.');
+        String majorVersion = separator < 0 ? version : version.substring(0, separator);
+        try {
+            return Integer.parseInt(majorVersion);
+        } catch (NumberFormatException ignored) {
+            return -1;
+        }
+    }
 }

dubbo-spring-boot-project/dubbo-spring-boot-4-autoconfigure/pom.xml

@@ -0,0 +1,119 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>org.apache.dubbo</groupId>
+    <artifactId>dubbo-parent</artifactId>
+    <version>${revision}</version>
+    <relativePath>../../pom.xml</relativePath>
+  </parent>
+
+  <artifactId>dubbo-spring-boot-4-autoconfigure</artifactId>
+  <packaging>jar</packaging>
+  <description>Apache Dubbo Spring Boot 4 Auto-Configure</description>
+
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-dependencies</artifactId>
+        <version>${spring-boot-4.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <dependencies>
+    <!-- Spring Boot dependencies -->
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-autoconfigure</artifactId>
+      <optional>true</optional>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-tomcat</artifactId>
+      <optional>true</optional>
+    </dependency>
+
+    <!-- Dubbo -->
+    <dependency>
+      <groupId>org.apache.dubbo</groupId>
+      <artifactId>dubbo</artifactId>
+      <version>${project.version}</version>
+      <optional>true</optional>
+    </dependency>
+
+    <dependency>
+      <groupId>org.apache.dubbo</groupId>
+      <artifactId>dubbo-triple-servlet</artifactId>
+      <version>${project.version}</version>
+      <optional>true</optional>
+    </dependency>
+
+    <dependency>
+      <groupId>org.apache.dubbo</groupId>
+      <artifactId>dubbo-triple-websocket</artifactId>
+      <version>${project.version}</version>
+      <optional>true</optional>
+    </dependency>
+
+    <dependency>
+      <groupId>jakarta.servlet</groupId>
+      <artifactId>jakarta.servlet-api</artifactId>
+      <scope>provided</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>jakarta.websocket</groupId>
+      <artifactId>jakarta.websocket-api</artifactId>
+      <scope>provided</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>jakarta.websocket</groupId>
+      <artifactId>jakarta.websocket-client-api</artifactId>
+      <scope>provided</scope>
+    </dependency>
+
+    <!-- Test Dependencies -->
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-test</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-web</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <configuration>
+          <release>17</release>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>

dubbo-spring-boot-project/dubbo-spring-boot-4-autoconfigure/src/main/java/org/apache/dubbo/spring/boot/autoconfigure/DubboTriple4AutoConfiguration.java

@@ -0,0 +1,104 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.dubbo.spring.boot.autoconfigure;
+
+import org.apache.dubbo.rpc.protocol.tri.ServletExchanger;
+import org.apache.dubbo.rpc.protocol.tri.servlet.jakarta.TripleFilter;
+import org.apache.dubbo.rpc.protocol.tri.websocket.jakarta.TripleWebSocketFilter;
+
+import jakarta.servlet.Filter;
+import org.apache.coyote.ProtocolHandler;
+import org.apache.coyote.UpgradeProtocol;
+import org.apache.coyote.http2.Http2Protocol;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
+import org.springframework.boot.tomcat.ConfigurableTomcatWebServerFactory;
+import org.springframework.boot.web.server.WebServerFactoryCustomizer;
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Conditional;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration(proxyBeanMethods = false)
+@Conditional(SpringBoot4Condition.class)
+public class DubboTriple4AutoConfiguration {
+
+    public static final String SERVLET_PREFIX = "dubbo.protocol.triple.servlet";
+
+    public static final String WEBSOCKET_PREFIX = "dubbo.protocol.triple.websocket";
+
+    @Configuration(proxyBeanMethods = false)
+    @ConditionalOnClass(Filter.class)
+    @ConditionalOnWebApplication(type = Type.SERVLET)
+    @ConditionalOnProperty(prefix = SERVLET_PREFIX, name = "enabled", havingValue = "true")
+    public static class TripleServletConfiguration {
+
+        @Bean
+        public FilterRegistrationBean<TripleFilter> tripleProtocolFilter(
+                @Value("${" + SERVLET_PREFIX + ".filter-url-patterns:/*}") String[] urlPatterns,
+                @Value("${" + SERVLET_PREFIX + ".filter-order:-1000000}") int order,
+                @Value("${server.port:8080}") int serverPort) {
+            ServletExchanger.bindServerPort(serverPort);
+            FilterRegistrationBean<TripleFilter> registrationBean = new FilterRegistrationBean<>();
+            registrationBean.setFilter(new TripleFilter());
+            registrationBean.addUrlPatterns(urlPatterns);
+            registrationBean.setOrder(order);
+            return registrationBean;
+        }
+
+        @Bean
+        @ConditionalOnClass(Http2Protocol.class)
+        @ConditionalOnProperty(prefix = SERVLET_PREFIX, name = "max-concurrent-streams")
+        public WebServerFactoryCustomizer<ConfigurableTomcatWebServerFactory> tripleTomcatHttp2Customizer(
+                @Value("${" + SERVLET_PREFIX + ".max-concurrent-streams}") int maxConcurrentStreams) {
+            return factory -> factory.addConnectorCustomizers(connector -> {
+                ProtocolHandler handler = connector.getProtocolHandler();
+                for (UpgradeProtocol upgradeProtocol : handler.findUpgradeProtocols()) {
+                    if (upgradeProtocol instanceof Http2Protocol) {
+                        Http2Protocol protocol = (Http2Protocol) upgradeProtocol;
+                        int value = maxConcurrentStreams <= 0 ? Integer.MAX_VALUE : maxConcurrentStreams;
+                        protocol.setMaxConcurrentStreams(value);
+                        protocol.setMaxConcurrentStreamExecution(value);
+                    }
+                }
+            });
+        }
+    }
+
+    @Configuration(proxyBeanMethods = false)
+    @ConditionalOnClass(Filter.class)
+    @ConditionalOnWebApplication(type = Type.SERVLET)
+    @ConditionalOnProperty(prefix = WEBSOCKET_PREFIX, name = "enabled", havingValue = "true")
+    public static class TripleWebSocketConfiguration {
+
+        @Bean
+        public FilterRegistrationBean<TripleWebSocketFilter> tripleWebSocketFilter(
+                @Value("${" + WEBSOCKET_PREFIX + ".filter-url-patterns:/*}") String[] urlPatterns,
+                @Value("${" + WEBSOCKET_PREFIX + ".filter-order:-1000000}") int order,
+                @Value("${server.port:8080}") int serverPort) {
+            ServletExchanger.bindServerPort(serverPort);
+            FilterRegistrationBean<TripleWebSocketFilter> registrationBean = new FilterRegistrationBean<>();
+            registrationBean.setFilter(new TripleWebSocketFilter());
+            registrationBean.addUrlPatterns(urlPatterns);
+            registrationBean.setOrder(order);
+            return registrationBean;
+        }
+    }
+}

dubbo-spring-boot-project/dubbo-spring-boot-4-autoconfigure/src/main/java/org/apache/dubbo/spring/boot/autoconfigure/SpringBoot4Condition.java

@@ -0,0 +1,46 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.dubbo.spring.boot.autoconfigure;
+
+import org.springframework.boot.SpringBootVersion;
+import org.springframework.context.annotation.Condition;
+import org.springframework.context.annotation.ConditionContext;
+import org.springframework.core.type.AnnotatedTypeMetadata;
+
+public class SpringBoot4Condition implements Condition {
+
+    public static boolean IS_SPRING_BOOT_4 = getSpringBootMajorVersion() >= 4;
+
+    @Override
+    public boolean matches(ConditionContext context, AnnotatedTypeMetadata metadata) {
+        return IS_SPRING_BOOT_4;
+    }
+
+    private static int getSpringBootMajorVersion() {
+        String version = SpringBootVersion.getVersion();
+        if (version == null || version.isEmpty()) {
+            return -1;
+        }
+        int separator = version.indexOf('.');
+        String majorVersion = separator < 0 ? version : version.substring(0, separator);
+        try {
+            return Integer.parseInt(majorVersion);
+        } catch (NumberFormatException ignored) {
+            return -1;
+        }
+    }
+}

dubbo-spring-boot-project/dubbo-spring-boot-4-autoconfigure/src/main/resources/META-INF/spring.factories

@@ -0,0 +1,2 @@
+org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
+org.apache.dubbo.spring.boot.autoconfigure.DubboTriple4AutoConfiguration

dubbo-spring-boot-project/dubbo-spring-boot-4-autoconfigure/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports

@@ -0,0 +1 @@
+org.apache.dubbo.spring.boot.autoconfigure.DubboTriple4AutoConfiguration