Question

我知道有很多关于SLF4J问题的帖子，但没有一个能帮助我解决我的问题。

我创建了一个带有Spring Initializer的新项目，其中依赖项web，rest和mvn clean install以及导入的文件作为模块下载到新的IntelliJ项目中。

我可以做SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/Applications/IntelliJ%20IDEA.app/Contents/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/Users/matteweon/.m2/repository/ch/qos/logback/logback-classic/1.1.11/logback-classic-1.1.11.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]并且它有效。但这是我在运行主类时得到的错误消息：

<?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>poc.local</groupId>
    <artifactId>robot-shop-store</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>robot-shop-store</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.10.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-mongodb</artifactId>
            <!--exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>jcl-over-slf4j</artifactId>
                </exclusion>
            </exclusions-->
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-rest</artifactId>
            <!--exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>jcl-over-slf4j</artifactId>
                </exclusion>
            </exclusions-->
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

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

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

这是我的pom.xml：

Exception in thread "main" java.lang.IllegalArgumentException: LoggerFactory is not a Logback LoggerContext but Logback is on the classpath. Either remove Logback or the competing implementation (class org.slf4j.impl.Log4jLoggerFactory loaded from file:/Applications/IntelliJ%20IDEA.app/Contents/lib/slf4j-log4j12-1.7.10.jar). If you are using WebLogic you will need to add 'org.slf4j' to prefer-application-packages in WEB-INF/weblogic.xml: org.slf4j.impl.Log4jLoggerFactory

我尝试在mongodb和data-rest依赖项下向slf4j添加一些排除项（您可以在此文件中看到注释），并为另一个添加了错误：

$.each( this.data, function(key,value){
  $.each( value.tags, function(i, j){
    console.log("TAGS", j);
    var array = [];
    var items = array.push(j);
    console.log("ITEMS ARRAY", array);
    $("ul.tag-list").append("<li><span class='tag is-link'>" + j + "</span></li>");
  });
});

有什么想法吗？

Answer 1

当我尝试运行另一个项目时，我已经完成了相同的依赖项，它运行得很好，所以我知道不是导致问题的项目，而是IntelliJ本身。所以我在IntelliJ和IntelliJ的配置文件（.iml文件和.idea文件夹）上删除了我的模块，我重新导入了项目，现在它正在工作

Answer 2

我对pom.xml文件做了很多更改，例如对slf4j的专有权，但无济于事。最后通过删除slf4j-log4j12-1.7.10.jar解决了该问题。这应该可以解决您的问题。

Jar路径：文件：/Applications/IntelliJ%20IDEA.app/Contents/lib/slf4j-log4j12-1.7.10.jar

创建新的SpringBoot项目时SLF4J出现问题

2 个答案: