我正在将Spring Boot与Jetty一起使用,看来我不能在Gradle构建文件中排除所有Tomcat依赖项。
build.gradle的相关部分:
compile("org.springframework.boot:spring-boot-starter") { exclude module: "tomcat-embed-el" } compile("org.springframework.boot:spring-boot-starter-jetty") compile("org.springframework.boot:spring-boot-starter-web") { exclude module: "spring-boot-starter-tomcat" }
但是,当我运行gradle dependencies部分tomcat时,仍然存在,并导致WebSockets出现问题:
gradle dependencies
... | +--- org.springframework.boot:spring-boot-starter-web: -> 1.4.1.RELEASE | +--- org.springframework.boot:spring-boot-starter:1.4.1.RELEASE (*) | +--- org.hibernate:hibernate-validator:5.2.4.Final | | +--- javax.validation:validation-api:1.1.0.Final | | +--- org.jboss.logging:jboss-logging:3.2.1.Final -> 3.3.0.Final | | \--- com.fasterxml:classmate:1.1.0 -> 1.3.1 | +--- com.fasterxml.jackson.core:jackson-databind:2.8.3 | | +--- com.fasterxml.jackson.core:jackson-annotations:2.8.0 -> 2.8.3 | | \--- com.fasterxml.jackson.core:jackson-core:2.8.3 | +--- org.springframework:spring-web:4.3.3.RELEASE | | +--- org.springframework:spring-aop:4.3.3.RELEASE (*) | | +--- org.springframework:spring-beans:4.3.3.RELEASE (*) | | +--- org.springframework:spring-context:4.3.3.RELEASE (*) | | \--- org.springframework:spring-core:4.3.3.RELEASE | +--- org.springframework:spring-webmvc:4.3.3.RELEASE | | +--- org.springframework:spring-aop:4.3.3.RELEASE (*) | | +--- org.springframework:spring-beans:4.3.3.RELEASE (*) | | +--- org.springframework:spring-context:4.3.3.RELEASE (*) | | +--- org.springframework:spring-core:4.3.3.RELEASE | | +--- org.springframework:spring-expression:4.3.3.RELEASE (*) | | \--- org.springframework:spring-web:4.3.3.RELEASE (*) | \--- org.springframework.boot:spring-boot-starter-tomcat:1.4.1.RELEASE | +--- org.apache.tomcat.embed:tomcat-embed-core:8.5.5 | +--- org.apache.tomcat.embed:tomcat-embed-el:8.5.5 | \--- org.apache.tomcat.embed:tomcat-embed-websocket:8.5.5 | \--- org.apache.tomcat.embed:tomcat-embed-core:8.5.5 ...
为什么不spring-boot-starter-tomcat排除在外spring-boot-starter-web?
spring-boot-starter-tomcat
spring-boot-starter-web
啊哈,找到原因了。
我也有compile("org.springframework.boot:spring-boot-starter- websocket")依赖,也依赖spring-boot-starter-tomcat。Gradle依赖项输出使我误认为这spring-boot- starter-web是Tomcat仍然存在的原因。
compile("org.springframework.boot:spring-boot-starter- websocket")
spring-boot- starter-web
我必须添加以下内容:
compile("org.springframework.boot:spring-boot-starter-websocket") { exclude module: "spring-boot-starter-tomcat" }
经验教训是,当您要排除某些内容时,请仔细检查所有依赖项,以确保将其从所有位置排除。gradle依赖输出可以得到改进以减少误导…