Spring-security - 无法访问 ServletException
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【中文标题】Spring-security - 无法访问 ServletException【英文标题】：Spring-security - cannot access ServletException 【发布时间】：2014-10-02 22:26:35 【问题描述】：我喜欢使用 spring-security 模块，但是当我按照 spring 项目中的教程 (http://docs.spring.io/spring-security/site/docs/3.2.x/guides/helloworld.html) 进行操作时，编译器会返回：
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] \springframework\security\samples\config\SecurityWebApplicationInitializer.java:[5,7] error: cannot access ServletException
[ERROR]\springframework\security\samples\config\SecurityConfig.java:[10,7] error: cannot access Filter
[INFO] 2 errors
你能指导我有什么问题吗？
<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>***</groupId>
<artifactId>***</artifactId>
<packaging>war</packaging>
<version>0.1</version>
<name>Spring MVC Application</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>$project.build.sourceEncoding</project.reporting.outputEncoding>
<java-version>1.7</java-version>
<org.aspectj-version>1.7.4</org.aspectj-version>
<org.slf4j-version>1.7.5</org.slf4j-version>
<ch.qos.logback-version>1.0.13</ch.qos.logback-version>
<org.thymeleaf-version>2.1.2.RELEASE</org.thymeleaf-version>
<org.thymeleaf.extras.springsecurity3-version>2.1.1.RELEASE</org.thymeleaf.extras.springsecurity3-version>
<springframework.org-version>4.0.6.RELELASE</springframework.org-version>
</properties>
<repositories>
<repository>
<id>java.net2</id>
<name>Repository hosting the jee6 artifacts</name>
<url>http://download.java.net/maven/2</url>
</repository>
<repository>
<id>sonatype-oss-repository</id>
<url>https://oss.sonatype.org/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>repository.spring.milestone</id>
<name>Spring Milestone Repository</name>
<url>http://repo.spring.io/milestone</url>
</repository>
</repositories>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<version>4.0.6.RELEASE</version>
<artifactId>spring-context</artifactId>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<version>4.0.6.RELEASE</version>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<!-- Security -->
<dependency>
<version>3.2.4.RELEASE</version>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
</dependency>
<dependency>
<version>3.2.4.RELEASE</version>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
</dependency>
<!-- View -->
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf</artifactId>
<version>$org.thymeleaf-version</version>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring4</artifactId>
</dependency>
<dependency>
<groupId>org.thymeleaf.extras</groupId>
<artifactId>thymeleaf-extras-springsecurity3</artifactId>
<version>$org.thymeleaf.extras.springsecurity3-version</version>
</dependency>
<!-- Persistence -->
<dependency>
<version>4.0.6.RELEASE</version>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<dependency>
<version>4.0.6.RELEASE</version>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
</dependency>
<dependency>
<version>4.0.6.RELEASE</version>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
</dependency>
<!-- Spring Data -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.4.1.RELEASE</version>
</dependency>
<!-- AspectJ -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>$org.aspectj-version</version>
</dependency>
<!-- Logging -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>$org.slf4j-version</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>$org.slf4j-version</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>$ch.qos.logback-version</version>
</dependency>
<!-- @Inject -->
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<!-- JSON -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.9</version>
</dependency>
<!-- Utilities -->
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>14.0.1</version>
</dependency>
<!-- Test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>1.9.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>1.5.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
<version>1.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-library</artifactId>
<version>1.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.objenesis</groupId>
<artifactId>objenesis</artifactId>
<version>1.3</version>
<scope>test</scope>
</dependency>
<dependency>
<version>4.0.6.RELEASE</version>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-dbcp</artifactId>
<version>8.0.3</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.3.4.Final</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.29</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<url>http://localhost:8080/manager/text</url>
<server>localhost</server>
<path>/coco</path>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>$java-version</source>
<target>$java-version</target>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<configuration>
<warName>cocoadm-0.1</warName>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>install</id>
<phase>install</phase>
<goals>
<goal>sources</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.5</version>
<configuration>
<encoding>$project.build.sourceEncoding</encoding>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring4</artifactId>
<version>$org.thymeleaf-version</version>
</dependency>
</dependencies>
</dependencyManagement>
【问题讨论】：
【参考方案1】：尝试添加servlet-api依赖
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
【讨论】：
是的，这就是原因。谢谢:) 一些注意事项：我在Build Path 中添加Tomcat 8.0 作为Server Runtime。虽然 eclipse 并没有抱怨这样的错误，但在命令行中运行 mvn verify 仍然会报告这个错误。无论如何，在pom.xml 中显式添加此依赖项即可解决问题。【参考方案2】：
如果你的项目是 spring-boot，添加这个：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
【讨论】：
这里会介绍servlet-api。所以mavarazy是正确的答案。因为你不能总是介绍spring-boot-starter-web。比如你在一个spring cloud gateway项目中。
确实，云网关使用 Webflux (Netty)，而 Spring Boot Web 使用 Tomcat，不能一起使用以上是关于Spring-security - 无法访问 ServletException的主要内容，如果未能解决你的问题，请参考以下文章
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