我的java类在tomcat上部署时抛出此错误:
before do sign_in :user, user end
在本地测试时,课程运行良好。我知道杰克逊版本可能存在冲突,但我无法找到答案。
这是我的pom.xml的摘录
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)
App在Tomcat 7.0上运行。
修改:已添加完整 <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>
非常感谢任何帮助。
答案 0 :(得分:1)
Maven非常酷,但并没有解决所有问题,我在这个问题上输了3小时+ ...
再次感谢您的贡献,非常有帮助。
Soufian
答案 1 :(得分:0)
正如你在tomcat上所说,你使用的是不同版本的jackson-core而不是你的版本。 通过mvn help找出你在maven中使用的内容:effective-pom 看看你在战争中打包的内容。 它也有可能,tomcat使用自己的jackson库来解决问题。
答案 2 :(得分:0)
您尚未提供有关您的问题的详细信息,但我可以告诉您,版本2.1.0是第一个采用getValueAsString方法的版本。你的pom.xml中的version也有它。旧版本没有它,这就是你的问题所在。所以根据我的经验,这显然是一个问题,你有两个jackson-core jar版本正在运行,类加载器首先得到旧版本。您需要执行以下操作:
$ find . -name "*jackson*"
在您的tomcat 7目录中。找到旧版本并将其从集成中删除。阅读tomcat 7网页,了解有关tomcat版本的类加载器的更多信息。