java - spring-boot 在多模块应用程序上失败-6ren

java - spring-boot 在多模块应用程序上失败

转载作者：行者123 更新时间：2023-11-30 10:59:02

我尝试创建具有多个模块的 spring-boot 应用程序，其结构如下:

omnibus/
   /domain
   /persistence
   /service
   /web

在主 pom 中我设置了 spring-boot-starter-parent:

<?xml version="1.0" encoding="UTF-8"?>
<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>

<groupId>omnibus</groupId>
<artifactId>omnibus</artifactId>
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.2.5.RELEASE</version>
</parent>

<modules>
    <module>persistence</module>
    <module>domain</module>
    <module>service</module>
    <module>web</module>
</modules>

<properties>
    <java.version>1.8</java.version>
    <start-class>pl.omnibus.Application</start-class>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.3</version>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

</project>

在 web 模块中我包含了类:

package pl.omnibus;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

web模块的pom.xml如下:

<?xml version="1.0" encoding="UTF-8"?>
<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">
<parent>
    <artifactId>omnibus</artifactId>
    <groupId>omnibus</groupId>
    <version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>

<artifactId>web</artifactId>

<dependencies>
    <dependency>
        <groupId>omnibus</groupId>
        <artifactId>service</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
</dependencies>

现在当我尝试执行时:

mvn package

在项目上，如果持久性模块的测试失败，因为它没有看到域的依赖性，尽管它是在持久性 pom.xml 中声明的:

<dependencies>
    <dependency>
        <groupId>omnibus</groupId>
        <artifactId>domain</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>
    (...)
</dependencies>

奇怪的是这些命令成功通过:

mvn test
mvn package -DskipTests

但即使是后者，我也无法运行 web.jar，因为

java -jar web-1.0-SNAPSHOT.jar

对于域模块中的类，在 java.lang.NoClassDefFoundError 上失败。我将不胜感激任何帮助，因为我是 spring-boot 的新手并且找不到创建具有多个模块的 spring-boot 应用程序的解决方案。

编辑:我正在添加

的输出

mvn dependency:tree

对于@chrylis

[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO] 
[INFO] omnibus
[INFO] domain
[INFO] persistence
[INFO] service
[INFO] web
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building omnibus 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.9:tree (default-cli) @ omnibus ---
[INFO] omnibus:omnibus:pom:1.0-SNAPSHOT
[INFO] +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.2.5.RELEASE:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.0.23:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.0.23:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-logging-juli:jar:8.0.23:compile
[INFO] |  \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.0.23:compile
[INFO] \- org.springframework.boot:spring-boot-starter-test:jar:1.2.5.RELEASE:test
[INFO]    +- junit:junit:jar:4.12:test
[INFO]    +- org.mockito:mockito-core:jar:1.10.19:test
[INFO]    |  \- org.objenesis:objenesis:jar:2.1:test
[INFO]    +- org.hamcrest:hamcrest-core:jar:1.3:test
[INFO]    +- org.hamcrest:hamcrest-library:jar:1.3:test
[INFO]    +- org.springframework:spring-core:jar:4.1.7.RELEASE:test
[INFO]    \- org.springframework:spring-test:jar:4.1.7.RELEASE:test
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building domain 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.9:tree (default-cli) @ domain ---
[INFO] omnibus:domain:jar:1.0-SNAPSHOT
[INFO] +- javax.persistence:persistence-api:jar:1.0.2:compile
[INFO] +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.2.5.RELEASE:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.0.23:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.0.23:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-logging-juli:jar:8.0.23:compile
[INFO] |  \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.0.23:compile
[INFO] \- org.springframework.boot:spring-boot-starter-test:jar:1.2.5.RELEASE:test
[INFO]    +- junit:junit:jar:4.12:test
[INFO]    +- org.mockito:mockito-core:jar:1.10.19:test
[INFO]    |  \- org.objenesis:objenesis:jar:2.1:test
[INFO]    +- org.hamcrest:hamcrest-core:jar:1.3:test
[INFO]    +- org.hamcrest:hamcrest-library:jar:1.3:test
[INFO]    +- org.springframework:spring-core:jar:4.1.7.RELEASE:test
[INFO]    \- org.springframework:spring-test:jar:4.1.7.RELEASE:test
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building persistence 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.9:tree (default-cli) @ persistence ---
[INFO] omnibus:persistence:jar:1.0-SNAPSHOT
[INFO] +- omnibus:domain:jar:1.0-SNAPSHOT:compile
[INFO] |  \- javax.persistence:persistence-api:jar:1.0.2:compile
[INFO] +- org.jooq:jooq:jar:3.6.1:compile
[INFO] +- org.jooq:jooq-meta:jar:3.6.1:compile
[INFO] +- org.jooq:jooq-codegen:jar:3.6.1:compile
[INFO] +- org.springframework.boot:spring-boot-starter-jdbc:jar:1.2.5.RELEASE:compile
[INFO] |  +- org.springframework.boot:spring-boot-starter:jar:1.2.5.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot:jar:1.2.5.RELEASE:compile
[INFO] |  |  |  \- org.springframework:spring-context:jar:4.1.7.RELEASE:compile
[INFO] |  |  |     +- org.springframework:spring-aop:jar:4.1.7.RELEASE:compile
[INFO] |  |  |     |  \- aopalliance:aopalliance:jar:1.0:compile
[INFO] |  |  |     \- org.springframework:spring-expression:jar:4.1.7.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot-autoconfigure:jar:1.2.5.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot-starter-logging:jar:1.2.5.RELEASE:compile
[INFO] |  |  |  +- org.slf4j:jcl-over-slf4j:jar:1.7.12:compile
[INFO] |  |  |  +- org.slf4j:jul-to-slf4j:jar:1.7.12:compile
[INFO] |  |  |  +- org.slf4j:log4j-over-slf4j:jar:1.7.12:compile
[INFO] |  |  |  \- ch.qos.logback:logback-classic:jar:1.1.3:compile
[INFO] |  |  |     \- ch.qos.logback:logback-core:jar:1.1.3:compile
[INFO] |  |  \- org.yaml:snakeyaml:jar:1.14:compile
[INFO] |  +- org.springframework:spring-core:jar:4.1.7.RELEASE:compile
[INFO] |  +- org.springframework:spring-jdbc:jar:4.1.7.RELEASE:compile
[INFO] |  |  \- org.springframework:spring-beans:jar:4.1.7.RELEASE:compile
[INFO] |  +- org.apache.tomcat:tomcat-jdbc:jar:8.0.23:compile
[INFO] |  |  \- org.apache.tomcat:tomcat-juli:jar:8.0.23:compile
[INFO] |  \- org.springframework:spring-tx:jar:4.1.7.RELEASE:compile
[INFO] +- org.postgresql:postgresql:jar:9.4-1201-jdbc41:compile
[INFO] +- org.dbunit:dbunit:jar:2.5.1:test
[INFO] |  +- org.slf4j:slf4j-api:jar:1.7.12:compile
[INFO] |  +- junit:junit:jar:4.12:test
[INFO] |  +- commons-collections:commons-collections:jar:3.2.1:test
[INFO] |  \- org.apache.poi:poi-ooxml:jar:3.11:test
[INFO] |     +- org.apache.poi:poi:jar:3.11:test
[INFO] |     |  \- commons-codec:commons-codec:jar:1.9:test
[INFO] |     \- org.apache.poi:poi-ooxml-schemas:jar:3.11:test
[INFO] |        \- org.apache.xmlbeans:xmlbeans:jar:2.6.0:test
[INFO] |           \- stax:stax-api:jar:1.0.1:test
[INFO] +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.2.5.RELEASE:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.0.23:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.0.23:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-logging-juli:jar:8.0.23:compile
[INFO] |  \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.0.23:compile
[INFO] \- org.springframework.boot:spring-boot-starter-test:jar:1.2.5.RELEASE:test
[INFO]    +- org.mockito:mockito-core:jar:1.10.19:test
[INFO]    |  \- org.objenesis:objenesis:jar:2.1:test
[INFO]    +- org.hamcrest:hamcrest-core:jar:1.3:test
[INFO]    +- org.hamcrest:hamcrest-library:jar:1.3:test
[INFO]    \- org.springframework:spring-test:jar:4.1.7.RELEASE:test
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building service 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.9:tree (default-cli) @ service ---
[INFO] omnibus:service:jar:1.0-SNAPSHOT
[INFO] +- omnibus:persistence:jar:1.0-SNAPSHOT:compile
[INFO] |  +- omnibus:domain:jar:1.0-SNAPSHOT:compile
[INFO] |  |  \- javax.persistence:persistence-api:jar:1.0.2:compile
[INFO] |  +- org.jooq:jooq:jar:3.6.1:compile
[INFO] |  +- org.jooq:jooq-meta:jar:3.6.1:compile
[INFO] |  +- org.jooq:jooq-codegen:jar:3.6.1:compile
[INFO] |  +- org.springframework.boot:spring-boot-starter-jdbc:jar:1.2.5.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot-starter:jar:1.2.5.RELEASE:compile
[INFO] |  |  |  +- org.springframework.boot:spring-boot:jar:1.2.5.RELEASE:compile
[INFO] |  |  |  |  \- org.springframework:spring-context:jar:4.1.7.RELEASE:compile
[INFO] |  |  |  |     +- org.springframework:spring-aop:jar:4.1.7.RELEASE:compile
[INFO] |  |  |  |     |  \- aopalliance:aopalliance:jar:1.0:compile
[INFO] |  |  |  |     \- org.springframework:spring-expression:jar:4.1.7.RELEASE:compile
[INFO] |  |  |  +- org.springframework.boot:spring-boot-autoconfigure:jar:1.2.5.RELEASE:compile
[INFO] |  |  |  +- org.springframework.boot:spring-boot-starter-logging:jar:1.2.5.RELEASE:compile
[INFO] |  |  |  |  +- org.slf4j:jcl-over-slf4j:jar:1.7.12:compile
[INFO] |  |  |  |  |  \- org.slf4j:slf4j-api:jar:1.7.12:compile
[INFO] |  |  |  |  +- org.slf4j:jul-to-slf4j:jar:1.7.12:compile
[INFO] |  |  |  |  +- org.slf4j:log4j-over-slf4j:jar:1.7.12:compile
[INFO] |  |  |  |  \- ch.qos.logback:logback-classic:jar:1.1.3:compile
[INFO] |  |  |  |     \- ch.qos.logback:logback-core:jar:1.1.3:compile
[INFO] |  |  |  \- org.yaml:snakeyaml:jar:1.14:compile
[INFO] |  |  +- org.springframework:spring-jdbc:jar:4.1.7.RELEASE:compile
[INFO] |  |  |  \- org.springframework:spring-beans:jar:4.1.7.RELEASE:compile
[INFO] |  |  +- org.apache.tomcat:tomcat-jdbc:jar:8.0.23:compile
[INFO] |  |  |  \- org.apache.tomcat:tomcat-juli:jar:8.0.23:compile
[INFO] |  |  \- org.springframework:spring-tx:jar:4.1.7.RELEASE:compile
[INFO] |  \- org.postgresql:postgresql:jar:9.4-1201-jdbc41:compile
[INFO] +- commons-validator:commons-validator:jar:1.4.1:compile
[INFO] |  +- commons-beanutils:commons-beanutils:jar:1.9.2:compile
[INFO] |  +- commons-digester:commons-digester:jar:2.1:compile
[INFO] |  +- commons-logging:commons-logging:jar:1.2:compile
[INFO] |  \- commons-collections:commons-collections:jar:3.2.1:compile
[INFO] +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.2.5.RELEASE:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.0.23:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.0.23:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-logging-juli:jar:8.0.23:compile
[INFO] |  \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.0.23:compile
[INFO] \- org.springframework.boot:spring-boot-starter-test:jar:1.2.5.RELEASE:test
[INFO]    +- junit:junit:jar:4.12:test
[INFO]    +- org.mockito:mockito-core:jar:1.10.19:test
[INFO]    |  \- org.objenesis:objenesis:jar:2.1:test
[INFO]    +- org.hamcrest:hamcrest-core:jar:1.3:test
[INFO]    +- org.hamcrest:hamcrest-library:jar:1.3:test
[INFO]    +- org.springframework:spring-core:jar:4.1.7.RELEASE:compile
[INFO]    \- org.springframework:spring-test:jar:4.1.7.RELEASE:test
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building web 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-dependency-plugin:2.9:tree (default-cli) @ web ---
[INFO] omnibus:web:jar:1.0-SNAPSHOT
[INFO] +- omnibus:service:jar:1.0-SNAPSHOT:compile
[INFO] |  +- omnibus:persistence:jar:1.0-SNAPSHOT:compile
[INFO] |  |  +- omnibus:domain:jar:1.0-SNAPSHOT:compile
[INFO] |  |  |  \- javax.persistence:persistence-api:jar:1.0.2:compile
[INFO] |  |  +- org.jooq:jooq:jar:3.6.1:compile
[INFO] |  |  +- org.jooq:jooq-meta:jar:3.6.1:compile
[INFO] |  |  +- org.jooq:jooq-codegen:jar:3.6.1:compile
[INFO] |  |  +- org.springframework.boot:spring-boot-starter-jdbc:jar:1.2.5.RELEASE:compile
[INFO] |  |  |  +- org.springframework:spring-jdbc:jar:4.1.7.RELEASE:compile
[INFO] |  |  |  +- org.apache.tomcat:tomcat-jdbc:jar:8.0.23:compile
[INFO] |  |  |  |  \- org.apache.tomcat:tomcat-juli:jar:8.0.23:compile
[INFO] |  |  |  \- org.springframework:spring-tx:jar:4.1.7.RELEASE:compile
[INFO] |  |  \- org.postgresql:postgresql:jar:9.4-1201-jdbc41:compile
[INFO] |  \- commons-validator:commons-validator:jar:1.4.1:compile
[INFO] |     +- commons-beanutils:commons-beanutils:jar:1.9.2:compile
[INFO] |     +- commons-digester:commons-digester:jar:2.1:compile
[INFO] |     +- commons-logging:commons-logging:jar:1.2:compile
[INFO] |     \- commons-collections:commons-collections:jar:3.2.1:compile
[INFO] +- org.springframework.boot:spring-boot-starter-web:jar:1.2.5.RELEASE:compile
[INFO] |  +- org.springframework.boot:spring-boot-starter:jar:1.2.5.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot:jar:1.2.5.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot-autoconfigure:jar:1.2.5.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot-starter-logging:jar:1.2.5.RELEASE:compile
[INFO] |  |  |  +- org.slf4j:jcl-over-slf4j:jar:1.7.12:compile
[INFO] |  |  |  |  \- org.slf4j:slf4j-api:jar:1.7.12:compile
[INFO] |  |  |  +- org.slf4j:jul-to-slf4j:jar:1.7.12:compile
[INFO] |  |  |  +- org.slf4j:log4j-over-slf4j:jar:1.7.12:compile
[INFO] |  |  |  \- ch.qos.logback:logback-classic:jar:1.1.3:compile
[INFO] |  |  |     \- ch.qos.logback:logback-core:jar:1.1.3:compile
[INFO] |  |  \- org.yaml:snakeyaml:jar:1.14:compile
[INFO] |  +- com.fasterxml.jackson.core:jackson-databind:jar:2.4.6:compile
[INFO] |  |  +- com.fasterxml.jackson.core:jackson-annotations:jar:2.4.6:compile
[INFO] |  |  \- com.fasterxml.jackson.core:jackson-core:jar:2.4.6:compile
[INFO] |  +- org.hibernate:hibernate-validator:jar:5.1.3.Final:compile
[INFO] |  |  +- javax.validation:validation-api:jar:1.1.0.Final:compile
[INFO] |  |  +- org.jboss.logging:jboss-logging:jar:3.1.3.GA:compile
[INFO] |  |  \- com.fasterxml:classmate:jar:1.0.0:compile
[INFO] |  +- org.springframework:spring-core:jar:4.1.7.RELEASE:compile
[INFO] |  +- org.springframework:spring-web:jar:4.1.7.RELEASE:compile
[INFO] |  |  +- org.springframework:spring-aop:jar:4.1.7.RELEASE:compile
[INFO] |  |  |  \- aopalliance:aopalliance:jar:1.0:compile
[INFO] |  |  +- org.springframework:spring-beans:jar:4.1.7.RELEASE:compile
[INFO] |  |  \- org.springframework:spring-context:jar:4.1.7.RELEASE:compile
[INFO] |  \- org.springframework:spring-webmvc:jar:4.1.7.RELEASE:compile
[INFO] |     \- org.springframework:spring-expression:jar:4.1.7.RELEASE:compile
[INFO] +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.2.5.RELEASE:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.0.23:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.0.23:compile
[INFO] |  +- org.apache.tomcat.embed:tomcat-embed-logging-juli:jar:8.0.23:compile
[INFO] |  \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.0.23:compile
[INFO] \- org.springframework.boot:spring-boot-starter-test:jar:1.2.5.RELEASE:test
[INFO]    +- junit:junit:jar:4.12:test
[INFO]    +- org.mockito:mockito-core:jar:1.10.19:test
[INFO]    |  \- org.objenesis:objenesis:jar:2.1:test
[INFO]    +- org.hamcrest:hamcrest-core:jar:1.3:test
[INFO]    +- org.hamcrest:hamcrest-library:jar:1.3:test
[INFO]    \- org.springframework:spring-test:jar:4.1.7.RELEASE:test
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] omnibus ............................................ SUCCESS [ 21.195 s]
[INFO] domain ............................................. SUCCESS [  0.121 s]
[INFO] persistence ........................................ SUCCESS [  0.840 s]
[INFO] service ............................................ SUCCESS [  0.193 s]
[INFO] web ................................................ SUCCESS [  0.304 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 23.970 s
[INFO] Finished at: 2015-08-16T17:25:06+02:00
[INFO] Final Memory: 18M/245M
[INFO] ------------------------------------------------------------------------

最佳答案

您的命令输出看起来很奇怪，因为您在问题中提到 groupId 是“app”，但是命令输出显示 groupId 是“omnibus”而不是 app。

尝试将依赖项更改为:

<dependencies>
<dependency>
    <groupId>omnibus</groupId>
    <artifactId>domain</artifactId>
    <version>1.0-SNAPSHOT</version>
</dependency>
(...)

所有其他模块依赖项也是如此。

关于java - spring-boot 在多模块应用程序上失败，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32034955/

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当我分别将数组和对象传递给 function.apply() 时，我得到 NaN 的 o/p，但是当我传递对象和数组时，我得到一个数字。为什么会发生这种情况？由于数组也被视为对象，为什么我无法使用它
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