Apache Tomcat-javax.servlet.ServletException:我的 Class 不是 Servlet
Apache Tomcat-javax.servlet.ServletException: My Class is not a Servlet
目前我正在使用 Spring MVC 和 Spring Boot 开发 Web 应用程序。
我试图将 spring 启动应用程序打包为 war。我修改了我的申请 class:
@SpringBootApplication
@ComponentScan
@EnableAutoConfiguration
public class AuditConfigurationApplication extends SpringBootServletInitializer {
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(AuditConfigurationApplication.class);
}
public static void main(String[] args) {
SpringApplication.run(AuditConfigurationApplication.class, args);
}
-pom.xml 文件:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<!-- spring data -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- pdfbox -->
<dependency>
<groupId>org.apache.pdfbox</groupId>
<artifactId>pdfbox</artifactId>
<version>2.0.1</version>
</dependency>
<!-- itextpdf -->
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.0.6</version>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- mysql-connector -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<version>8.5.11</version>
</dependency>
<!-- Spring security -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>4.0.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>4.0.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>4.0.3.RELEASE</version>
</dependency>
<!-- ecj for exception "No Java compiler available" -->
<dependency>
<groupId>org.eclipse.jdt.core.compiler</groupId>
<artifactId>ecj</artifactId>
<version>4.6.1</version>
<scope>provided</scope>
</dependency>
<!-- for uri: -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>jstl-api</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<!-- For JSON Object -->
<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
<version>1.1</version>
</dependency>
</dependencies>
-我的控制器休息:
package com.SSC.Services.REST;
@CrossOrigin
@RestController
@RequestMapping("/Employees")
public class UtilisateursRestController {
@RequestMapping(value="/ALL", method=RequestMethod.GET)
public List<Users> AllUsers(){
return UM.listeT();
}
}
- web.xml
version="3.1"
:
<!-- ====================================================== -->
<!-- 2. Define servlet with private context -->
<!-- ===================================================== -->
<servlet>
<servlet-name>audit</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- ===================================================== -->
<!-- One servlet, the audit, to rule it all -->
<!-- ===================================================== -->
<servlet-mapping>
<servlet-name>audit</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>Users</servlet-name>
<servlet-class>com.SSC.Services.REST.UtilisateursRestController</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Users</servlet-name>
<url-pattern>/Employees/*</url-pattern> //URL of controller REST
</servlet-mapping>
<error-page>
<error-code>404</error-code>
<location>/404</location>
</error-page>
-审计-servlet.xml :
<beans>
<!-- register controller in servlet private context -->
<context:component-scan base-package="com.SSC.Services.REST"/>
</beans>
-我将我的项目 "Apps" 作为 war 文件导出到 "C:\apache-tomcat-8.5.15\webapps\"。 Tomcat 创建文件夹 "Apps",其中包含所有内容:
Apps
--META-INF
-maven
-MANIFEST.MF
-war-tracker
--WEB-INF
-classes
-com
-static
-application.properties
- lib-provided
-lib
- web.xml + audit-servlet.xml
--org
-- My JSP pages ..
当我访问 API REST: http://95.x.x.x/Apps(Name of floder)/Employees/ALL
时,出现以下错误消息:
javax.servlet.ServletException: Class [com.SSC.Services.REST.UtilisateursRestController] is not a Servlet
Apache Tomcat / 8.5.15
如何解决这个问题?
谢谢,
你的 web.xml
是这里的罪魁祸首,作为第二个竞争者你的依赖。另请参阅 Spring 引导参考指南,该指南在 GitHub 上也有关于 creating a deployable war. You might want to take a look at the war sample 的精彩部分。
首先删除您的 web.xml
您不需要它。您的 AuditConfigurationApplication
也是 SpringBootServletInitializer
,它负责在 servlet 容器中引导应用程序(而不是可执行)。
接下来你的依赖关系也有点不稳定。您应该使用 spring-boot-starter-security
而不是手动定义 Spring 安全依赖项。并且您应该为嵌入式库使用另一个依赖项。
<!-- Spring security -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
您应该提供以下内容
<!-- Provided (for embedded war support) -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
根据您的依赖关系判断您也在使用 JSP(尽管我现在建议使用 Thymeleaf 之类的东西)您可能想阅读 GitHub 上的 JSP Limitations section in the reference guide and take a look at the needed dependencies in the JSP sample。
您不需要 servlet-api
已包含在 spring-boot-starter-web
中的依赖项。
目前我正在使用 Spring MVC 和 Spring Boot 开发 Web 应用程序。
我试图将 spring 启动应用程序打包为 war。我修改了我的申请 class:
@SpringBootApplication
@ComponentScan
@EnableAutoConfiguration
public class AuditConfigurationApplication extends SpringBootServletInitializer {
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(AuditConfigurationApplication.class);
}
public static void main(String[] args) {
SpringApplication.run(AuditConfigurationApplication.class, args);
}
-pom.xml 文件:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<!-- spring data -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- pdfbox -->
<dependency>
<groupId>org.apache.pdfbox</groupId>
<artifactId>pdfbox</artifactId>
<version>2.0.1</version>
</dependency>
<!-- itextpdf -->
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.0.6</version>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- mysql-connector -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<version>8.5.11</version>
</dependency>
<!-- Spring security -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>4.0.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>4.0.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>4.0.3.RELEASE</version>
</dependency>
<!-- ecj for exception "No Java compiler available" -->
<dependency>
<groupId>org.eclipse.jdt.core.compiler</groupId>
<artifactId>ecj</artifactId>
<version>4.6.1</version>
<scope>provided</scope>
</dependency>
<!-- for uri: -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>jstl-api</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<!-- For JSON Object -->
<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
<version>1.1</version>
</dependency>
</dependencies>
-我的控制器休息:
package com.SSC.Services.REST;
@CrossOrigin
@RestController
@RequestMapping("/Employees")
public class UtilisateursRestController {
@RequestMapping(value="/ALL", method=RequestMethod.GET)
public List<Users> AllUsers(){
return UM.listeT();
}
}
- web.xml
version="3.1"
:
<!-- ====================================================== --> <!-- 2. Define servlet with private context --> <!-- ===================================================== --> <servlet> <servlet-name>audit</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <!-- ===================================================== --> <!-- One servlet, the audit, to rule it all --> <!-- ===================================================== --> <servlet-mapping> <servlet-name>audit</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <servlet> <servlet-name>Users</servlet-name> <servlet-class>com.SSC.Services.REST.UtilisateursRestController</servlet-class> </servlet> <servlet-mapping> <servlet-name>Users</servlet-name> <url-pattern>/Employees/*</url-pattern> //URL of controller REST </servlet-mapping> <error-page> <error-code>404</error-code> <location>/404</location> </error-page>
-审计-servlet.xml :
<beans>
<!-- register controller in servlet private context -->
<context:component-scan base-package="com.SSC.Services.REST"/>
</beans>
-我将我的项目 "Apps" 作为 war 文件导出到 "C:\apache-tomcat-8.5.15\webapps\"。 Tomcat 创建文件夹 "Apps",其中包含所有内容:
Apps
--META-INF
-maven
-MANIFEST.MF
-war-tracker
--WEB-INF
-classes
-com
-static
-application.properties
- lib-provided
-lib
- web.xml + audit-servlet.xml
--org
-- My JSP pages ..
当我访问 API REST: http://95.x.x.x/Apps(Name of floder)/Employees/ALL
时,出现以下错误消息:
javax.servlet.ServletException: Class [com.SSC.Services.REST.UtilisateursRestController] is not a Servlet Apache Tomcat / 8.5.15
如何解决这个问题?
谢谢,
你的 web.xml
是这里的罪魁祸首,作为第二个竞争者你的依赖。另请参阅 Spring 引导参考指南,该指南在 GitHub 上也有关于 creating a deployable war. You might want to take a look at the war sample 的精彩部分。
首先删除您的 web.xml
您不需要它。您的 AuditConfigurationApplication
也是 SpringBootServletInitializer
,它负责在 servlet 容器中引导应用程序(而不是可执行)。
接下来你的依赖关系也有点不稳定。您应该使用 spring-boot-starter-security
而不是手动定义 Spring 安全依赖项。并且您应该为嵌入式库使用另一个依赖项。
<!-- Spring security -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
您应该提供以下内容
<!-- Provided (for embedded war support) -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
根据您的依赖关系判断您也在使用 JSP(尽管我现在建议使用 Thymeleaf 之类的东西)您可能想阅读 GitHub 上的 JSP Limitations section in the reference guide and take a look at the needed dependencies in the JSP sample。
您不需要 servlet-api
已包含在 spring-boot-starter-web
中的依赖项。