我已经创建了一个spring-boot应用程序。这在localhost中运行良好。但是在对项目进行码头化后，我在连接到本地主机时遇到了问题。即使在docker CLI的CLI中，它也会说：
sh-4.4# curl localhost:2008/store/products
curl: (7) Failed to connect to localhost port 2008: Connection refused
然而，我在终点站没有出现任何错误。每当我尝试通过localhost:2008/store/products访问时，终端中没有任何变化。
控制器
package org.assignments.dockerize;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.util.List;
@RestController
@RequestMapping(path = "/store/")
class ProductsCategoriesController {
private final ProductsService productsService;
private final CategoryService categoryService;
@Autowired
public ProductsCategoriesController(ProductsService productsService, CategoryService categoryService) {
this.productsService = productsService;
this.categoryService = categoryService;
}
@GetMapping(path = "/products")
public List<Products> getProducts() {
return productsService.getProducts();
}
@PostMapping(path = "/products")
public Products addNewProduct(@RequestBody Products product) {
return productsService.addNewProduct(product);
}
@GetMapping(path = "/products/{id}")
public List<String> findProductByCategoryID(@PathVariable("id") Integer id) {
return productsService.getProductsByCategoryID(id);
}
@GetMapping(path = "/categories")
public List<Categories> getCategories() {
return categoryService.getCategories();
}
@PostMapping(path = "/add/categories")
public void addNewCategory(@RequestBody Categories category) {
categoryService.addNewCategory(category);
}
}
build.gradle
plugins {
id 'org.springframework.boot' version '2.5.2'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
}
group = 'org.assignments'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '15'
def versionLog4j = '2.14.1'
def versionLombok = '1.18.20'
repositories {
mavenCentral()
}
dependencies {
implementation group: 'org.apache.logging.log4j', name: 'log4j-api', version: versionLog4j
implementation group: 'org.apache.logging.log4j', name: 'log4j-core', version: versionLog4j
implementation group: 'org.projectlombok', name: 'lombok', version: versionLombok
annotationProcessor group: 'org.projectlombok', name: 'lombok', version: versionLombok
// implementation 'org.springframework.boot:spring-boot-starter-data-jdbc'
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'org.springframework.boot:spring-boot-starter-web'
runtimeOnly 'org.postgresql:postgresql'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
}
test {
useJUnitPlatform()
}
tasks.withType( JavaCompile ).configureEach {
options.forkOptions.jvmArgs.addAll( ['--add-opens', 'jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED'] )
}
Dockerfile
FROM openjdk:16
EXPOSE 8899
ADD Assignment-14a/build/libs/*.jar dockerstore.jar
ENTRYPOINT ["java","-jar","dockerstore.jar"]
application.properties
server.port = 8090
spring.datasource.url = jdbc:postgresql://<myIP>:2006/store
spring.datasource.username = postgres
spring.datasource.password = *****
spring.jpa.hibernate.ddl-auto = create-drop
spring.jpa.show-sql = true
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect
spring.jpa.properties.hibernate.format_sql = true
创建图像的代码
docker build -f Assignemnt-14a/Dockerfile -t storeimage .
运行容器的代码
docker run -p 8085:8085 docker-spring-boot
容器已成功创建。还显示了端口。
C:UsersmasterProjects>docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
3a3ad3d11b63 storeimage "java -jar dockersto…" 31 minutes ago Up 31 minutes 0.0.0.0:2008->8899/tcp, :::2008->8899/tcp jovial_rosalind
4c7d9b67a7ac postgres:latest "docker-entrypoint.s…" 2 weeks ago Up 2 hours 0.0.0.0:2006->5432/tcp, :::2006->5432/tcp zs-intern-pgsql
C:UsersmasterProjects>docker port jovial_rosalind
8899/tcp -> 0.0.0.0:2008
8899/tcp -> :::2008
但当我尝试打开localhost:2008/store/products时，它显示This page isn’t workinglocalhost didn’t send any data. ERR_EMPTY_RESPONSE
如果没有来源，很难调查您面临的问题。我唯一能建议的是尝试用docker run -p localhost:8085:localhost:8085 docker-spring-boot代替docker run -p 8085:8085 docker-spring-boot。请告诉我它是否有效。