【发布时间】：2024-01-19 07:18:02
【问题描述】：
我的问题是：如何将外部 jar 库添加到 jsp/maven/eclipse 项目中？ 第二个问题；如果我怀疑我的问题是我的 pom.xml 文件中的语法错误；什么是正确的？
我是一名经验丰富的 Java 开发人员，我正在寻求将我的专业知识扩展到 Servlet 和 jsp 编程。我正在对此进行试验。
我已经获得了设置 maven3/eclipse (kepler) 工作站的帮助，并且我已经成功完成了一些基本教程。但是，我在让外部 .jar 与我的代码一起工作时遇到了严重的困难。我尝试了几种解决方案。
在线提供的一个防弹解决方案只是将我的 jar 放在 WEB-INF/lib 中，然后通过
-
在怀疑我没有指定我正在使用 maven 时，在搜索解决方案时，它确实是一个重要的细节，我发现了很多关于 pom.xml 文件的不同建议。依赖项和存储库是流行语。我尝试了几种不同的复制粘贴解决方案，但现在我的项目甚至不再构建。这是我尝试启动码头服务器并构建项目时的错误消息：
H:\projects\xxx-releaseplan>mvn jetty:run [INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building xxx-releaseplan Maven Webapp 1.0-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] >>> jetty-maven-plugin:8.1.13.v20130916:run (default-cli) @ xxx-releaseplan >>> [WARNING] The POM for com.xxx.mrpb.model.jar:com.xxx.mrpb.model.jar:jar:1.0 is missing, no dependency information availabl e [WARNING] The POM for com.xxx.mrpb.viewmodel.jar:com.xxx.mrpb.viewmodel.jar:jar:1.0 is missing, no dependency information available [WARNING] The POM for servlet-api-2.5.jar:servlet-api-2.5.jar:jar:2.5 is missing, no dependency information available [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 0.299s [INFO] Finished at: Tue Feb 25 13:47:26 CET 2014 [INFO] Final Memory: 2M/61M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal on project xxx-releaseplan: Could not resolve dependencies for project com.xxx.releaseplan :xxx-releaseplan:war:1.0-SNAPSHOT: The following artifacts could not be resolved: com.xxx.mrpb.model.jar:com.xxx.mrpb.mode l.jar:jar:1.0, com.xxx.mrpb.viewmodel.jar:com.xxx.mrpb.viewmodel.jar:jar:1.0, servlet-api-2.5.jar:servlet-api-2.5.jar:jar: 2.5: Failure to find com.xxx.mrpb.model.jar:com.xxx.mrpb.model.jar:jar:1.0 in http://repo.maven.apache.org/maven2 was cach ed in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updat es are forced -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException H:\projects\xxx-releaseplan>
我的 pom.xml 看起来像这样：
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>dk.sdc.releaseplan</groupId>
<artifactId>sdc-releaseplan</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>sdc-releaseplan Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>dk.sdc.mrpb.model.jar</groupId>
<artifactId>dk.sdc.mrpb.model.jar</artifactId>
<version>1.0</version>
<scope>compile</scope>
<type>jar</type>
</dependency>
<dependency>
<groupId>dk.sdc.mrpb.viewmodel.jar</groupId>
<artifactId>dk.sdc.mrpb.viewmodel.jar</artifactId>
<version>1.0</version>
<scope>compile</scope>
<type>jar</type>
</dependency>
<dependency>
<groupId>servlet-api-2.5.jar</groupId>
<artifactId>servlet-api-2.5.jar</artifactId>
<version>2.5</version>
<scope>compile</scope>
<type>jar</type>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>sdc-releaseplan</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<!--<plugin> <groupId>ro.isdc.wro4j</groupId> <artifactId>wro4j-maven-plugin</artifactId>
<version>${wro4j.version}</version> <executions> <execution> <goals> <goal>jshint</goal>
</goals> </execution> </executions> <configuration> <options>devel,evil,noarg</options>
</configuration> </plugin> -->
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-antrun-plugin</artifactId>
<executions>
<execution>
<phase>initialize</phase>
<goals>
<goal>run</goal>
</goals>
<configuration>
<tasks>
<echo>********************************************</echo>
<echo>***** This project REQUIRES Maven 3.0+ *****</echo>
<echo>********************************************</echo>
<echo>mvn jetty:run - Running as un-assembled webapp</echo>
<echo>mvn jetty:run-war - Running as assembled webapp</echo>
</tasks>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<!-- Jetty Version: 8.x Home: Eclipse, Codehaus Java Version: 1.6 Protocols:
HTTP/1.1 RFC2616, WebSocket, SPDY Servlet Version: 3.0 JSP Version: 2.1 http://wiki.eclipse.org/Jetty -->
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>8.1.13.v20130916</version>
<configuration>
<webAppConfig>
<contextPath>/</contextPath>
</webAppConfig>
<scanIntervalSeconds>1</scanIntervalSeconds>
</configuration>
</plugin>
</plugins>
</build>
</project>
【问题讨论】：
标签： java eclipse jsp maven jar