使用maven插件Tomcat7 启动，报错，404错误等问题的解决

• 使用maven插件Tomcat7

  tomcat7-maven-plugin 插件配置

  在pom.xml文件加入

  
  

• 启动Tomcat7

  使用Maven build

  
  

• 使用Maven 命令

  在命令行中输入

  mvn clean tomcat7:run

  • 1

  其它命令

  tomcat7:run -- 启动嵌入式tomcat ，并运行当前项目
  tomcat7:deploy   --部署一个web war包
  tomcat7:reload   --重新加载web war包
  tomcat7:start    --启动tomcat
  tomcat7:stop    --停止tomcat
  tomcat7:undeploy--停止一个war包

  启动成功

  控制台输出：

  SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. [INFO] Scanning for projects... [INFO] ------------------------------------------------------------------------ [INFO] Reactor Build Order: [INFO]  [INFO] e3-manager [INFO] e3-manager-pojo [INFO] e3-manager-dao [INFO] e3-manager-interface [INFO] e3-manager-service [INFO] e3-manager-web [INFO]                                                                          [INFO] ------------------------------------------------------------------------ [INFO] Building e3-manager 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO]  [INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ e3-manager --- [INFO]  [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager >>> [INFO]  [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager <<< [INFO]  [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager --- [INFO] Skipping non-war project [INFO]                                                                          [INFO] ------------------------------------------------------------------------ [INFO] Building e3-manager-pojo 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO]  [INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ e3-manager-pojo --- [INFO] Deleting C:\Users\Administrator\workspace\e3-manager\e3-manager-pojo\target [INFO]  [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-pojo >>> [INFO]  [INFO] --- maven-resources-plugin:2.7:resources (default-resources) @ e3-manager-pojo --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 0 resource [INFO]  [INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ e3-manager-pojo --- [INFO] Changes detected - recompiling the module! [INFO] Compiling 22 source files to C:\Users\Administrator\workspace\e3-manager\e3-manager-pojo\target\classes [INFO]  [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-pojo <<< [INFO]  [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-pojo --- [INFO] Skipping non-war project [INFO]                                                                          [INFO] ------------------------------------------------------------------------ [INFO] Building e3-manager-dao 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO]  [INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ e3-manager-dao --- [INFO] Deleting C:\Users\Administrator\workspace\e3-manager\e3-manager-dao\target [INFO]  [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-dao >>> [INFO]  [INFO] --- maven-resources-plugin:2.7:resources (default-resources) @ e3-manager-dao --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 11 resources [INFO]  [INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ e3-manager-dao --- [INFO] Changes detected - recompiling the module! [INFO] Compiling 11 source files to C:\Users\Administrator\workspace\e3-manager\e3-manager-dao\target\classes [INFO]  [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-dao <<< [INFO]  [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-dao --- [INFO] Skipping non-war project [INFO]                                                                          [INFO] ------------------------------------------------------------------------ [INFO] Building e3-manager-interface 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO]  [INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ e3-manager-interface --- [INFO] Deleting C:\Users\Administrator\workspace\e3-manager\e3-manager-interface\target [INFO]  [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-interface >>> [INFO]  [INFO] --- maven-resources-plugin:2.7:resources (default-resources) @ e3-manager-interface --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 0 resource [INFO]  [INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ e3-manager-interface --- [INFO] Changes detected - recompiling the module! [INFO] Compiling 1 source file to C:\Users\Administrator\workspace\e3-manager\e3-manager-interface\target\classes [INFO]  [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-interface <<< [INFO]  [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-interface --- [INFO] Skipping non-war project [INFO]                                                                          [INFO] ------------------------------------------------------------------------ [INFO] Building e3-manager-service 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO]  [INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ e3-manager-service --- [INFO] Deleting C:\Users\Administrator\workspace\e3-manager\e3-manager-service\target [INFO]  [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-service >>> [INFO]  [INFO] --- maven-resources-plugin:2.7:resources (default-resources) @ e3-manager-service --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 0 resource [INFO]  [INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ e3-manager-service --- [INFO] Changes detected - recompiling the module! [INFO] Compiling 1 source file to C:\Users\Administrator\workspace\e3-manager\e3-manager-service\target\classes [INFO]  [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-service <<< [INFO]  [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-service --- [INFO] Skipping non-war project [INFO]                                                                          [INFO] ------------------------------------------------------------------------ [INFO] Building e3-manager-web 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO]  [INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ e3-manager-web --- [INFO] Deleting C:\Users\Administrator\workspace\e3-manager\e3-manager-web\target [INFO]  [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-web >>> [INFO]  [INFO] --- maven-resources-plugin:2.7:resources (default-resources) @ e3-manager-web --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 6 resources [INFO]  [INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ e3-manager-web --- [INFO] Changes detected - recompiling the module! [INFO] Compiling 1 source file to C:\Users\Administrator\workspace\e3-manager\e3-manager-web\target\classes [INFO]  [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-web <<< [INFO]  [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ e3-manager-web --- [INFO] Running war on http://localhost:8080/ [INFO] Creating Tomcat server configuration at C:\Users\Administrator\workspace\e3-manager\e3-manager-web\target\tomcat [INFO] create webapp with contextPath:  五月 14, 2018 4:00:51 下午 org.apache.coyote.AbstractProtocol init 信息: Initializing ProtocolHandler ["http-bio-8080"] 五月 14, 2018 4:00:51 下午 org.apache.catalina.core.StandardService startInternal 信息: Starting service Tomcat 五月 14, 2018 4:00:51 下午 org.apache.catalina.core.StandardEngine startInternal 信息: Starting Servlet Engine: Apache Tomcat/7.0.47 五月 14, 2018 4:00:55 下午 org.apache.catalina.core.ApplicationContext log 信息: No Spring WebApplicationInitializer types detected on classpath 五月 14, 2018 4:00:55 下午 org.apache.catalina.core.ApplicationContext log 信息: Initializing Spring root WebApplicationContext log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info. 五月 14, 2018 4:00:58 下午 org.apache.catalina.core.ApplicationContext log 信息: Initializing Spring FrameworkServlet 'e3-manager' 五月 14, 2018 4:01:00 下午 org.apache.coyote.AbstractProtocol start 信息: Starting ProtocolHandler ["http-bio-8080"]

  此时访问http://localhost:8080/ 即可
  

• 需要修改依赖

  <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>${servlet-api.version}</version><!-- 版本自己定义 -->
      <scope>provided</scope><!-- 必须要有 -->
  </dependency>

  启动成功但是404

  遇到404 肯定是因为路径错误 
  仔细检查你的默认html或者jsp等等是否与web.xml中配置的一致

  <welcome-file-list>
      <welcome-file>index.html</welcome-file>
      <welcome-file>index.htm</welcome-file>
      <welcome-file>index.jsp</welcome-file>
      <welcome-file>default.html</welcome-file>
      <welcome-file>default.htm</welcome-file>
      <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>

  博客制作时参考博客为：https://blog.csdn.net/m0_37995707/article/details/77899345 欢迎访问，互相学习，感谢。