Spring 启动应用程序主要方法正在执行两次 -> 端口已被使用
Spring boot application main method is executing twice -> port already in use
这是我第一次从头开始配置 spring 启动应用程序，整整 2 天我都在为这个问题做噩梦。
当我尝试启动应用程序时，它看起来好像在尝试启动两次，每次我都收到一个端口已被使用的错误，但进程没有停止，如果我试图用邮递员调用端点，它有效。
这是他的控制台输出：
Starting Gradle Daemon...
Connected to the target VM, address: '127.0.0.1:61857', transport: 'socket'
Gradle Daemon started in 1 s 473 ms
> Task :processResources UP-TO-DATE
> Task :compileJava UP-TO-DATE
> Task :classes UP-TO-DATE
Connected to the VM started by ':VcrawlPortalBackendApplication.main()' (localhost:61879). Open the debugger session tab
> Task :VcrawlPortalBackendApplication.main()
. ____ _ __ _ _
/\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.4.RELEASE)
2020-02-25 15:48:19.817 INFO 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : Starting VcrawlPortalBackendApplication on VOQCLUJWEBTS with PID 471912
2020-02-25 15:48:19.822 DEBUG 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : Running with Spring Boot v2.2.4.RELEASE, Spring v5.2.3.RELEASE
2020-02-25 15:48:19.823 INFO 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : The following profiles are active: dev
2020-02-25 15:48:22.237 DEBUG 471912 --- [ restartedMain] c.v.v.config.DatabaseConfiguration : Configuring Datasource
.........
2020-02-25 15:48:25.065 INFO 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : Started VcrawlPortalBackendApplication in 6.273 seconds (JVM running for 6.994)
. ____ _ __ _ _
/\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.4.RELEASE)
2020-02-25 15:48:25.178 INFO 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : Starting VcrawlPortalBackendApplication on VOQCLUJWEBTS with PID 471912
2020-02-25 15:48:25.179 DEBUG 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : Running with Spring Boot v2.2.4.RELEASE, Spring v5.2.3.RELEASE
2020-02-25 15:48:25.179 INFO 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : The following profiles are active: dev
2020-02-25 15:48:25.765 DEBUG 471912 --- [ restartedMain] c.v.v.config.DatabaseConfiguration : Configuring Datasource
2020-02-25 15:48:25.904 INFO 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : Running with Spring profile(s) : [dev]
2020-02-25 15:48:26.166 ERROR 471912 --- [ restartedMain] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Web server failed to start. Port 8187 was already in use.
Action:
Identify and stop the process that's listening on port 8187 or configure this application to listen on another port.
这些日志都是一样的运行。
这是我的 build.gradle 文件：
plugins {
id 'org.springframework.boot' version '2.2.4.RELEASE'
id 'io.spring.dependency-management' version '1.0.9.RELEASE'
id 'java'
id 'war'
}
bootWar {
mainClassName = 'com.voquz.vcrawlportalbackend.VcrawlPortalBackendApplication'
excludeDevtools = true
}
springBoot {
mainClassName = 'com.voquz.vcrawlportalbackend.VcrawlPortalBackendApplication'
}
bootRun {
sourceResources sourceSets.main
if (System.getProperty('DEBUG', 'false') == 'true') {
jvmArgs '-Xdebug',
'-Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=9009'
}
}
if (project.hasProperty('prod')) {
apply from: 'profile_prod.gradle'
} else if (project.hasProperty('uat')) {
apply from: 'profile_uat.gradle'
} else {
apply from: 'profile_dev.gradle'
}
group = 'com.voquz.vcrawl-portal-backend'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
implementation ('org.springframework.boot:spring-boot-starter-web') {
exclude group: 'org.springframework.boot', module: 'spring-boot-starter-tomcat'
}
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'org.liquibase:liquibase-core'
implementation 'com.fasterxml.jackson.datatype:jackson-datatype-hibernate4'
implementation 'org.hibernate:hibernate-core'
providedRuntime 'org.springframework.boot:spring-boot-starter-tomcat'
testImplementation('org.springframework.boot:spring-boot-starter-test') {
exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
}
testImplementation 'org.springframework.security:spring-security-test'
compile group: 'com.microsoft.sqlserver', name: 'mssql-jdbc', version: '8.2.0.jre8'
compile 'com.github.sabomichal:liquibase-mssql:1.5'
compile group: 'com.hynnet', name: 'sqljdbc-chs', version: '4.0.2206.100'
}
compileJava.dependsOn(processResources)
clean {
delete "target"
}
task stage(dependsOn: 'bootRepackage') {
}
这里是 build.gradle 开发配置文件：
ext {
logbackLoglevel = "DEBUG"
}
dependencies {
compile group: 'org.springframework.boot', name: 'spring-boot-devtools'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-tomcat', version: '2.2.4.RELEASE'
}
bootRun {
args = ["--spring.profiles.active=dev"]
}
task setProdProperties(dependsOn: bootRun) {
doFirst {
System.setProperty('spring.profiles.active', 'dev')
}
}
processResources {
filesMatching('**/logback-spring.xml') {
filter {
it.replace('@logback.loglevel@', logbackLoglevel)
}
}
}
主要class:
@SpringBootApplication
@EnableConfigurationProperties({LiquibaseProperties.class})
public class VcrawlPortalBackendApplication {
private static final Logger log = LoggerFactory.getLogger(VcrawlPortalBackendApplication.class);
@Autowired
private Environment environment;
public static void main(String[] args) throws UnknownHostException {
SpringApplication app = new SpringApplication(VcrawlPortalBackendApplication.class);
SimpleCommandLinePropertySource source = new SimpleCommandLinePropertySource(args);
addDefaultProfile(app, source);
SpringApplication.run(VcrawlPortalBackendApplication.class, args);
Environment env = app.run(args).getEnvironment();
log.info("Access URLs:\n----------------------------------------------------------\n\t" +
"Local: \t\thttp://127.0.0.1:{}\n\t" +
"External: \thttp://{}:{}\n----------------------------------------------------------",
env.getProperty("server.port"),
InetAddress.getLocalHost().getHostAddress(),
env.getProperty("server.port"));
}
/**
* If no profile has been configured, set by default the "dev" profile.
*/
private static void addDefaultProfile(SpringApplication app, SimpleCommandLinePropertySource source) {
if (!source.containsProperty("spring.profiles.active") &&
!System.getenv().containsKey("SPRING_PROFILES_ACTIVE")) {
app.setAdditionalProfiles(Constants.SPRING_PROFILE_DEVELOPMENT);
}
}
@PostConstruct
public void initApplication() {
if (environment.getActiveProfiles().length == 0) {
log.warn("No Spring profile configured, running with default configuration");
} else {
log.info("Running with Spring profile(s) : {}", Arrays.toString(environment.getActiveProfiles()));
Collection<String> activeProfiles = Arrays.asList(environment.getActiveProfiles());
if (activeProfiles.contains(Constants.SPRING_PROFILE_DEVELOPMENT) && activeProfiles.contains(Constants.SPRING_PROFILE_PRODUCTION)) {
log.error("You have misconfigured your application! " +
"It should not run with both the 'dev' and 'prod' profiles at the same time.");
}
if (activeProfiles.contains(Constants.SPRING_PROFILE_DEVELOPMENT) && activeProfiles.contains(Constants.SPRING_PROFILE_UAT)) {
log.error("You have misconfigured your application! " +
"It should not run with both the 'dev' and 'uat' profiles at the same time.");
}
if (activeProfiles.contains(Constants.SPRING_PROFILE_PRODUCTION) && activeProfiles.contains(Constants.SPRING_PROFILE_UAT)) {
log.error("You have misconfigured your application! " +
"It should not run with both the 'prod' and 'uat' profiles at the same time.");
}
}
}
}
我的想法是我的构建文件有问题，但还没有找到解决方案。
有没有人遇到过同样的问题？任何解决方案的想法？
提前致谢。
您正在调用 SpringApplication::run 静态方法两次。
首先使用 SpringApplication.run(VcrawlPortalBackendApplication.class, args); 和它们来自您初始化的 SpringApplication 实例 Environment env = app.run(args).getEnvironment();
您的应用程序已经开始在端口 8187 上执行。由于您设置了 运行 方法的重复调用，它再次尝试在端口 8187 上开始执行。
解决方案 -> 删除 运行 函数的重复调用。
这是我第一次从头开始配置 spring 启动应用程序，整整 2 天我都在为这个问题做噩梦。 当我尝试启动应用程序时，它看起来好像在尝试启动两次，每次我都收到一个端口已被使用的错误，但进程没有停止，如果我试图用邮递员调用端点，它有效。
这是他的控制台输出：
Starting Gradle Daemon...
Connected to the target VM, address: '127.0.0.1:61857', transport: 'socket'
Gradle Daemon started in 1 s 473 ms
> Task :processResources UP-TO-DATE
> Task :compileJava UP-TO-DATE
> Task :classes UP-TO-DATE
Connected to the VM started by ':VcrawlPortalBackendApplication.main()' (localhost:61879). Open the debugger session tab
> Task :VcrawlPortalBackendApplication.main()
. ____ _ __ _ _
/\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.4.RELEASE)
2020-02-25 15:48:19.817 INFO 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : Starting VcrawlPortalBackendApplication on VOQCLUJWEBTS with PID 471912
2020-02-25 15:48:19.822 DEBUG 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : Running with Spring Boot v2.2.4.RELEASE, Spring v5.2.3.RELEASE
2020-02-25 15:48:19.823 INFO 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : The following profiles are active: dev
2020-02-25 15:48:22.237 DEBUG 471912 --- [ restartedMain] c.v.v.config.DatabaseConfiguration : Configuring Datasource
.........
2020-02-25 15:48:25.065 INFO 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : Started VcrawlPortalBackendApplication in 6.273 seconds (JVM running for 6.994)
. ____ _ __ _ _
/\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.4.RELEASE)
2020-02-25 15:48:25.178 INFO 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : Starting VcrawlPortalBackendApplication on VOQCLUJWEBTS with PID 471912
2020-02-25 15:48:25.179 DEBUG 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : Running with Spring Boot v2.2.4.RELEASE, Spring v5.2.3.RELEASE
2020-02-25 15:48:25.179 INFO 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : The following profiles are active: dev
2020-02-25 15:48:25.765 DEBUG 471912 --- [ restartedMain] c.v.v.config.DatabaseConfiguration : Configuring Datasource
2020-02-25 15:48:25.904 INFO 471912 --- [ restartedMain] c.v.v.VcrawlPortalBackendApplication : Running with Spring profile(s) : [dev]
2020-02-25 15:48:26.166 ERROR 471912 --- [ restartedMain] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Web server failed to start. Port 8187 was already in use.
Action:
Identify and stop the process that's listening on port 8187 or configure this application to listen on another port.
这些日志都是一样的运行。
这是我的 build.gradle 文件：
plugins {
id 'org.springframework.boot' version '2.2.4.RELEASE'
id 'io.spring.dependency-management' version '1.0.9.RELEASE'
id 'java'
id 'war'
}
bootWar {
mainClassName = 'com.voquz.vcrawlportalbackend.VcrawlPortalBackendApplication'
excludeDevtools = true
}
springBoot {
mainClassName = 'com.voquz.vcrawlportalbackend.VcrawlPortalBackendApplication'
}
bootRun {
sourceResources sourceSets.main
if (System.getProperty('DEBUG', 'false') == 'true') {
jvmArgs '-Xdebug',
'-Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=9009'
}
}
if (project.hasProperty('prod')) {
apply from: 'profile_prod.gradle'
} else if (project.hasProperty('uat')) {
apply from: 'profile_uat.gradle'
} else {
apply from: 'profile_dev.gradle'
}
group = 'com.voquz.vcrawl-portal-backend'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
implementation ('org.springframework.boot:spring-boot-starter-web') {
exclude group: 'org.springframework.boot', module: 'spring-boot-starter-tomcat'
}
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'org.liquibase:liquibase-core'
implementation 'com.fasterxml.jackson.datatype:jackson-datatype-hibernate4'
implementation 'org.hibernate:hibernate-core'
providedRuntime 'org.springframework.boot:spring-boot-starter-tomcat'
testImplementation('org.springframework.boot:spring-boot-starter-test') {
exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
}
testImplementation 'org.springframework.security:spring-security-test'
compile group: 'com.microsoft.sqlserver', name: 'mssql-jdbc', version: '8.2.0.jre8'
compile 'com.github.sabomichal:liquibase-mssql:1.5'
compile group: 'com.hynnet', name: 'sqljdbc-chs', version: '4.0.2206.100'
}
compileJava.dependsOn(processResources)
clean {
delete "target"
}
task stage(dependsOn: 'bootRepackage') {
}
这里是 build.gradle 开发配置文件：
ext {
logbackLoglevel = "DEBUG"
}
dependencies {
compile group: 'org.springframework.boot', name: 'spring-boot-devtools'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-tomcat', version: '2.2.4.RELEASE'
}
bootRun {
args = ["--spring.profiles.active=dev"]
}
task setProdProperties(dependsOn: bootRun) {
doFirst {
System.setProperty('spring.profiles.active', 'dev')
}
}
processResources {
filesMatching('**/logback-spring.xml') {
filter {
it.replace('@logback.loglevel@', logbackLoglevel)
}
}
}
主要class:
@SpringBootApplication
@EnableConfigurationProperties({LiquibaseProperties.class})
public class VcrawlPortalBackendApplication {
private static final Logger log = LoggerFactory.getLogger(VcrawlPortalBackendApplication.class);
@Autowired
private Environment environment;
public static void main(String[] args) throws UnknownHostException {
SpringApplication app = new SpringApplication(VcrawlPortalBackendApplication.class);
SimpleCommandLinePropertySource source = new SimpleCommandLinePropertySource(args);
addDefaultProfile(app, source);
SpringApplication.run(VcrawlPortalBackendApplication.class, args);
Environment env = app.run(args).getEnvironment();
log.info("Access URLs:\n----------------------------------------------------------\n\t" +
"Local: \t\thttp://127.0.0.1:{}\n\t" +
"External: \thttp://{}:{}\n----------------------------------------------------------",
env.getProperty("server.port"),
InetAddress.getLocalHost().getHostAddress(),
env.getProperty("server.port"));
}
/**
* If no profile has been configured, set by default the "dev" profile.
*/
private static void addDefaultProfile(SpringApplication app, SimpleCommandLinePropertySource source) {
if (!source.containsProperty("spring.profiles.active") &&
!System.getenv().containsKey("SPRING_PROFILES_ACTIVE")) {
app.setAdditionalProfiles(Constants.SPRING_PROFILE_DEVELOPMENT);
}
}
@PostConstruct
public void initApplication() {
if (environment.getActiveProfiles().length == 0) {
log.warn("No Spring profile configured, running with default configuration");
} else {
log.info("Running with Spring profile(s) : {}", Arrays.toString(environment.getActiveProfiles()));
Collection<String> activeProfiles = Arrays.asList(environment.getActiveProfiles());
if (activeProfiles.contains(Constants.SPRING_PROFILE_DEVELOPMENT) && activeProfiles.contains(Constants.SPRING_PROFILE_PRODUCTION)) {
log.error("You have misconfigured your application! " +
"It should not run with both the 'dev' and 'prod' profiles at the same time.");
}
if (activeProfiles.contains(Constants.SPRING_PROFILE_DEVELOPMENT) && activeProfiles.contains(Constants.SPRING_PROFILE_UAT)) {
log.error("You have misconfigured your application! " +
"It should not run with both the 'dev' and 'uat' profiles at the same time.");
}
if (activeProfiles.contains(Constants.SPRING_PROFILE_PRODUCTION) && activeProfiles.contains(Constants.SPRING_PROFILE_UAT)) {
log.error("You have misconfigured your application! " +
"It should not run with both the 'prod' and 'uat' profiles at the same time.");
}
}
}
}
我的想法是我的构建文件有问题，但还没有找到解决方案。 有没有人遇到过同样的问题？任何解决方案的想法？ 提前致谢。
您正在调用 SpringApplication::run 静态方法两次。
首先使用 SpringApplication.run(VcrawlPortalBackendApplication.class, args); 和它们来自您初始化的 SpringApplication 实例 Environment env = app.run(args).getEnvironment();
您的应用程序已经开始在端口 8187 上执行。由于您设置了 运行 方法的重复调用，它再次尝试在端口 8187 上开始执行。 解决方案 -> 删除 运行 函数的重复调用。