java - maven 找不到包和符号

Question

我有一个包含这些类的应用程序:(部分类(class)):

@SessionScoped
@Named
public class UserSessionBean implements Serializable {

    @javax.ws.rs.core.Context private HttpServletRequest httpRequest;

在 mvn compile 期间，我有这个错误:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.1:compile (default-compile) on project highway-web: Compilation failure: Compilation failure:
[ERROR] /home/kelevra/java/git/ttkHighway/highway-web/src/main/java/com/kmware/ttk/highway/beans/session/UserSessionBean.java:[28,25] package javax.servlet.http does not exist
[ERROR] 
[ERROR] /home/kelevra/java/git/ttkHighway/highway-web/src/main/java/com/kmware/ttk/highway/beans/session/UserSessionBean.java:[40,38] cannot find symbol
[ERROR] symbol  : class HttpServletRequest
[ERROR] location: class com.kmware.ttk.highway.beans.session.UserSessionBean
[ERROR] -> [Help 1]

在IDEA中制作就没有这样的问题。它可能是什么？

Answer 1

Java 文件 UserSessionBean 找不到类 HttpServletRequest。

您应该检查 pom 文件中声明的依赖项。确保你包括

 <dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>servlet-api</artifactId>
    <version>2.5</version>
    <scope>provided</scope>
  </dependency>

您能否尝试 mvn clean install 并查看它是否会产生相同的错误。

附言您是从控制台还是从 IDE 运行项目。