Question

我正在尝试在线执行托管在 tomcat 服务器上的 Spring boot 应用程序。问题是当我尝试获取、删除或发布数据时，用户控制器会生成此消息。

{
  "timestamp": "2021-01-24T06:45:42.144+00:00",
  "status": 404,
  "error": "Not Found",
  "message": "",
  "path": "/tool/api/v1/users"
}

奇怪的问题是，当我在本地运行服务器时 http://localhost:8080/api/v1/users 我得到数据但是当我尝试托管 war 文件并访问端点时，http://31.134.12.356:9080/tool/api/v1/users我最终遇到了上述错误。

我的用户控制器

@RequestMapping("/api/v1")
@RestController
public class UserController {
    @Autowired
    private UserRepository userRepository;

    @Autowired
    private RoleRepository roleRepository;

    @GetMapping("/users")
    public Iterable<User> getAllUsers() {
        return userRepository.findAll();
    }

    @GetMapping("/users/{id}")
    public User getUserById(@PathVariable("id") String id) {
        return userRepository.findById(id).get();
    }

    @GetMapping("/users/{username}")
    public User getUserByUsername(@PathVariable("username") String username) {
        return userRepository.findByUsername(username).get();
    }

    @PostMapping(value = "/users")
    public ResponseEntity<Object> saveUser(@RequestBody SaveUserRequest userRequest) {

        //save user details
        User user = new User(userRequest.getUsername(),
                userRequest.getDisplayName(), userRequest.getEmail(), userRequest.getIdentityProvider());

        Set<String> strRoles = userRequest.getRole();
        Set<Role> roles = new HashSet<>();

        if (strRoles == null) {
            Role userRole = roleRepository.findByName(ERole.ROLE_USER)
                    .orElseThrow(() -> new RuntimeException("Role is not found."));
            roles.add(userRole);
        } else {
            strRoles.forEach(role -> {
                switch (role) {
                    case "admin":
                        Role adminRole = roleRepository.findByName(ERole.ROLE_ADMIN)
                                .orElseThrow(() -> new RuntimeException("Role is not found."));
                        roles.add(adminRole);

                        break;
                    case "mod":
                        Role modRole = roleRepository.findByName(ERole.ROLE_MODERATOR)
                                .orElseThrow(() -> new RuntimeException("Role is not found."));
                        roles.add(modRole);

                        break;
                    default:
                        Role userRole = roleRepository.findByName(ERole.ROLE_USER)
                                .orElseThrow(() -> new RuntimeException("Role is not found."));
                        roles.add(userRole);
                }
            });
        }
        user.setRoles(roles);
        user.setId(java.util.UUID.randomUUID().toString());
        user.setLastLoggedOn(new Date());
        userRepository.save(user);

        return ResponseEntity.ok(user);
    }
}

奇怪的问题是我有其他端点并且它们工作正常，用户 rest api 是找不到的。我在api中添加了工具，因为它是war文件的名称，我在tomcat上运行了多个war文件。

ServletInitializer

public class ServletInitializer extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(MonitoringToolApplication.class);
    }

}

主类

@SpringBootApplication
@ComponentScan({ "com.example.tool.demo.controller"})
@EntityScan(basePackages = "com.example.tool.demo.model")
public class MonitoringToolApplication {

    public static void main(String[] args) {
        SpringApplication.run(MonitoringToolApplication.class, args);
    }

}

我的 pom 文件

<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example.tool</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>Example</name>
    <description>example</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
<!--            <scope>provided</scope>-->
        </dependency>
        <dependency>
            <groupId>com.microsoft.sqlserver</groupId>
            <artifactId>mssql-jdbc</artifactId>
            <version>8.2.2.jre8</version>
        </dependency>
        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
            <version>2.0.1.Final</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.6</version>
        </dependency>
        
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

Application.properties 文件

 #Example Tool connection string
    spring.datasource.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver
    spring.datasource.url=jdbc:sqlserver://localhost;databaseName=example_tools
    spring.datasource.username=sa
    spring.datasource.password= user2k!!__
    
    ## Hibernate Properties
    # The SQL dialect makes Hibernate generate better SQL for the chosen database
    spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.SQLServer2012Dialect
    
    # Hibernate ddl auto (create, create-drop, validate, update)
    spring.jpa.hibernate.ddl-auto = update
    spring.jpa.show-sql=true
    spring.jpa.properties.hibernate.format_sql = true

请帮我解决这个问题。非常感谢。

Answer 1

在服务端部署项目时，排除pom.xml文件中嵌入的tomcat

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
   <exclusions>
      <exclusion>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-tomcat</artifactId>
      </exclusion>
   </exclusions>
</dependency>

Spring boot 2.2.5 release 获取 404 not found 错误

1 个答案: