java - Jackson 依赖项/Tomcat 的冲突

Question

我的 java 类在部署到 tomcat 上时抛出此错误:

org.apache.jasper.JasperException: 
javax.servlet.ServletException: java.lang.NoSuchMethodError: com.fasterxml.jackson.core.JsonParser.getValueAsString()Ljava/lang/String;
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:556)

在本地测试时，类运行得非常好。我知道 Jackson 版本可能存在冲突，但我找不到。

这是我的 pom.xml 的摘录

    <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>com.skylads.skott.webapp</groupId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>Skylads CRM App</name>
    <description>CRM App integrating various features</description>
    <build>
        <sourceDirectory>src</sourceDirectory>
        <resources>
            <resource>
                <directory>src</directory>
                <excludes>
                    <exclude>**/*.java</exclude>
                </excludes>
            </resource>
            <resource>
                <directory>resources</directory>
                <excludes>
                    <exclude>**/*.java</exclude>
                </excludes>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.3</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.6</version>
                <configuration>
                    <warSourceDirectory>WebContent</warSourceDirectory>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <artifactId>crm</artifactId>
    <dependencies>
        <dependency>
            <groupId>com.google.apis</groupId>
            <artifactId>google-api-services-oauth2</artifactId>
            <exclusions>
                <exclusion>
                    <artifactId>jackson-core</artifactId>
                    <groupId>com.fasterxml.jackson.core</groupId>
                </exclusion>
            </exclusions>
            <version>v2-rev98-1.20.0</version>
        </dependency>

        <dependency>
            <groupId>com.google.apis</groupId>
            <artifactId>google-api-services-plus</artifactId>
            <version>v1-rev323-1.21.0</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.5</version>
        </dependency>
        <dependency>
            <groupId>com.google.oauth-client</groupId>
            <artifactId>google-oauth-client-java6</artifactId>
            <version>1.21.0</version>
        </dependency>

        <dependency>
            <groupId>com.google.http-client</groupId>
            <artifactId>google-http-client-jackson</artifactId>
            <version>1.20.0</version>
        </dependency>
        <dependency>
            <groupId>com.google.oauth-client</groupId>
            <artifactId>google-oauth-client</artifactId>
            <version>1.21.0</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-jdbc</artifactId>
            <version>7.0.35</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.38</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>org.scribe</groupId>
            <artifactId>scribe</artifactId>
            <version>1.1.2</version>
        </dependency>
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-core</artifactId>
                <version>2.1.3</version>
            </dependency>
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <version>2.1.3</version>
            </dependency>
        </dependencies>
    </dependencyManagement>
</project>

应用在 Tomcat 7.0 上运行。 编辑:添加了完整的 pom.xml 非常感谢任何帮助。

Answer 1

好的，伙计们，我摆脱了这场噩梦。我用了http://jhades.org/识别重叠的 jar，进入 web-inf 并删除有冲突并产生问题的旧 jar。

Maven 很酷，但并没有解决所有问题，我在这个问题上浪费了 3 个小时以上...

再次感谢您提供的非常有帮助的贡献。

苏菲安