我正在尝试将Apache Jclouds集成到我正在处理的Spring Boot应用程序中，以便我可以将文件上传到Rackspace Cloud Files（英国）。
我创建了一个我正在创建Bean的类;
import com.google.common.io.ByteSource;
import com.google.common.io.Files;
import org.jclouds.ContextBuilder;
import org.jclouds.io.Payload;
import org.jclouds.io.Payloads;
import org.jclouds.openstack.swift.v1.features.ObjectApi;
import org.jclouds.rackspace.cloudfiles.v1.CloudFilesApi;
import org.springframework.web.multipart.MultipartFile;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
/**
* Class WebStorage
*
*/
public class WebStorage {
private final String region = "lon";
private final String provider = "rackspace-cloudfiles-uk";
private String username;
private String apiKey;
private String container;
private String url;
private CloudFilesApi cloudFilesApi;
public WebStorage(String username, String apiKey, String container, String url) {
this.username = username;
this.apiKey = apiKey;
this.container = container;
this.url = url;
cloudFilesApi = ContextBuilder.newBuilder(provider)
.credentials(this.username, this.apiKey)
.buildApi(CloudFilesApi.class);
}
/**
* Accepts a MultipartFile and returns it as a File
* @param multipartFile the MultiPartFile to convert
* @return a new File
*/
public static File createFileFromMultipart(MultipartFile multipartFile) {
File file = new File(multipartFile.getOriginalFilename());
try {
file.createNewFile();
FileOutputStream fos = new FileOutputStream(file);
fos.write(multipartFile.getBytes());
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
return file;
}
/**
* Send the file to the CDN and return it's full URL
* @param name the path/name of the file on the CDN
* @param theFile the file to upload to the CDN
* @return the full URL to the uploaded file on the CDN
*/
public String put(String name, File theFile) {
ObjectApi objectApi = cloudFilesApi.getObjectApi(region, this.container);
/* Upload the file */
ByteSource byteSource = Files.asByteSource(theFile);
Payload filePayload = Payloads.newByteSourcePayload(byteSource);
objectApi.put(name, filePayload);
return this.url + name;
}
}
我在同一个地方宣布这个bean我宣布所有其他bean（工作正常）;
@Bean
public WebStorage storage() {
return new WebStorage(
env.getProperty("voila.cdn.username"),
env.getProperty("voila.cdn.apikey"),
env.getProperty("voila.cdn.container"),
env.getProperty("voila.cdn.url")
);
}
但是每次运行应用程序时，bean都无法加载，因为在尝试创建bean时会生成一个未找到的类错误。
2016-09-21 12:19:06.847 ERROR 14911 --- [ restartedMain] o.s.boot.SpringApplication : Application startup failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userController': Unsatisfied dependency expressed through field 'storage': Error creating bean with name 'storage' defined in class path resource [com/appapi/config/AppConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.appapi.helpers.WebStorage]: Factory method 'storage' threw exception; nested exception is java.lang.NoSuchMethodError: com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.<init>(Lcom/google/gson/internal/ConstructorConstructor;Lcom/google/gson/FieldNamingStrategy;Lcom/google/gson/internal/Excluder;)V; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'storage' defined in class path resource [com/appapi/config/AppConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.appapi.helpers.WebStorage]: Factory method 'storage' threw exception; nested exception is java.lang.NoSuchMethodError: com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.<init>(Lcom/google/gson/internal/ConstructorConstructor;Lcom/google/gson/FieldNamingStrategy;Lcom/google/gson/internal/Excluder;)V
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:569) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:349) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1214) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:776) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:369) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:313) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1185) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1174) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at com.appapi.VoilaApplication.main(VoilaApplication.java:12) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_25]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.4.0.RELEASE.jar:1.4.0.RELEASE]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'storage' defined in class path resource [com/appapi/config/AppConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.appapi.helpers.WebStorage]: Factory method 'storage' threw exception; nested exception is java.lang.NoSuchMethodError: com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.<init>(Lcom/google/gson/internal/ConstructorConstructor;Lcom/google/gson/FieldNamingStrategy;Lcom/google/gson/internal/Excluder;)V
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1123) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1018) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:207) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1214) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1054) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1019) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:566) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
... 24 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.appapi.helpers.WebStorage]: Factory method 'storage' threw exception; nested exception is java.lang.NoSuchMethodError: com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.<init>(Lcom/google/gson/internal/ConstructorConstructor;Lcom/google/gson/FieldNamingStrategy;Lcom/google/gson/internal/Excluder;)V
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
... 37 common frames omitted
Caused by: java.lang.NoSuchMethodError: com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.<init>(Lcom/google/gson/internal/ConstructorConstructor;Lcom/google/gson/FieldNamingStrategy;Lcom/google/gson/internal/Excluder;)V
at org.jclouds.json.internal.DeserializationConstructorAndReflectiveTypeAdapterFactory.<init>(DeserializationConstructorAndReflectiveTypeAdapterFactory.java:116) ~[jclouds-core-1.9.2.jar:1.9.2]
at org.jclouds.json.config.GsonModule.provideGson(GsonModule.java:129) ~[jclouds-core-1.9.2.jar:1.9.2]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_25]
at com.google.inject.internal.ProviderMethod.get(ProviderMethod.java:104) ~[guice-3.0.jar:na]
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40) ~[guice-3.0.jar:na]
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46) ~[guice-3.0.jar:na]
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031) ~[guice-3.0.jar:na]
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40) ~[guice-3.0.jar:na]
at com.google.inject.Scopes$1$1.get(Scopes.java:65) ~[guice-3.0.jar:na]
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40) ~[guice-3.0.jar:na]
at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38) ~[guice-3.0.jar:na]
at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62) ~[guice-3.0.jar:na]
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:84) ~[guice-3.0.jar:na]
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:254) ~[guice-3.0.jar:na]
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46) ~[guice-3.0.jar:na]
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1031) ~[guice-3.0.jar:na]
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40) ~[guice-3.0.jar:na]
at com.google.inject.Scopes$1$1.get(Scopes.java:65) ~[guice-3.0.jar:na]
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:40) ~[guice-3.0.jar:na]
at com.google.inject.internal.FactoryProxy.get(FactoryProxy.java:54) ~[guice-3.0.jar:na]
at com.google.inject.internal.InternalInjectorCreator$1.call(InternalInjectorCreator.java:204) ~[guice-3.0.jar:na]
at com.google.inject.internal.InternalInjectorCreator$1.call(InternalInjectorCreator.java:198) ~[guice-3.0.jar:na]
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1024) ~[guice-3.0.jar:na]
at com.google.inject.internal.InternalInjectorCreator.loadEagerSingletons(InternalInjectorCreator.java:198) ~[guice-3.0.jar:na]
at com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:179) ~[guice-3.0.jar:na]
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:109) ~[guice-3.0.jar:na]
at com.google.inject.Guice.createInjector(Guice.java:95) ~[guice-3.0.jar:na]
at org.jclouds.ContextBuilder.buildInjector(ContextBuilder.java:402) ~[jclouds-core-1.9.2.jar:1.9.2]
at org.jclouds.ContextBuilder.buildInjector(ContextBuilder.java:326) ~[jclouds-core-1.9.2.jar:1.9.2]
at org.jclouds.ContextBuilder.buildApi(ContextBuilder.java:644) ~[jclouds-core-1.9.2.jar:1.9.2]
at org.jclouds.ContextBuilder.buildApi(ContextBuilder.java:636) ~[jclouds-core-1.9.2.jar:1.9.2]
at com.appapi.helpers.WebStorage.<init>(WebStorage.java:49) ~[classes/:na]
at com.appapi.config.AppConfiguration.storage(AppConfiguration.java:41) ~[classes/:na]
at com.appapi.config.AppConfiguration$$EnhancerBySpringCGLIB$$d004a038.CGLIB$storage$2(<generated>) ~[classes/:na]
at com.appapi.config.AppConfiguration$$EnhancerBySpringCGLIB$$d004a038$$FastClassBySpringCGLIB$$59b0bc24.invoke(<generated>) ~[classes/:na]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:356) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at com.appapi.config.AppConfiguration$$EnhancerBySpringCGLIB$$d004a038.storage(<generated>) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_25]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
... 38 common frames omitted
我在我的pom文件中包含了1.9.2版本的jclouds;
<dependency>
<groupId>org.apache.jclouds</groupId>
<artifactId>jclouds-all</artifactId>
<version>1.9.2</version>
</dependency>
是否有人能够告诉我为什么我找不到课程错误？我没有在我的POM中包含任何Google依赖项，因此任何可用的东西都包含在我的某个依赖项中。
答案 0 :(得分：5)
这是jclouds中的一个已知问题。请参阅JCLOUDS-1160和JCLOUDS-1166。在修复这些问题之前，如果你不能强制使用版本的Gson＆lt; = 2.5，那么你将无法使用Spring Boot的jclouds。
另一种选择是使用maven-shade-plugin来遮蔽jclouds依赖关系并将Gson捆绑在其中。这样你就可以使用你的环境需要的Gson版本，而jclouds则使用阴影版本。
答案 1 :(得分：4)
我最初使用着色插件努力创建ubar jar，并最终使其正常工作。对于其他可能像我一样挣扎的人。
首先，创建一个新的（空）maven项目。
这是我的POM文件，其中包含apache jclouds旧版本的Gson，并重命名为Gson包，以便在最终jar中使用，因此它与我的主项目中的Gson不会发生冲突（请参阅重定位POM文件的一部分）。
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>digital.sheppard</groupId>
<artifactId>jclouds-shaded</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>org.apache.jclouds</groupId>
<artifactId>jclouds-all</artifactId>
<version>1.9.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<relocations>
<relocation>
<pattern>com.google.code.gson</pattern>
<shadedPattern>com.shaded.code.gson</shadedPattern>
</relocation>
</relocations>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
在终端上，构建项目以创建jar文件。
mvn package
最后，将jar文件复制到主项目的根目录中，在我的例子中是一个spring boot web应用程序。
在项目的根目录中创建名为＆＃39; maven-local-repo＆＃39;的文件夹，并在终端执行以下命令，将新创建的着色jar文件安装到项目的本地存储库中（显然更改文件名，工件等以匹配您创建的阴影jar。
mvn deploy:deploy-file -DgroupId=digital.sheppard -DartifactId=jclouds-shaded -Dversion=1.0-SNAPSHOT -Durl=file:./local-maven-repo/ -DrepositoryId=local-maven-repo -DupdateReleaseInfo=true -Dfile=jclouds-shaded-1.0-SNAPSHOT.jar
将您的本地存储库添加到POM文件中;
<repositories>
<repository>
<id>local-maven-repo</id>
<url>file:///${project.basedir}/local-maven-repo</url>
</repository>
</repositories>
最后添加依赖项;
<dependency>
<groupId>digital.sheppard</groupId>
<artifactId>jclouds-shaded</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
对我而言，就像魅力一样。
答案 2 :(得分：1)
我将我的Java代码切换为使用原始HTTP API：
https://support.rackspace.com/how-to/cloud-files-curl-cookbook/
e.g。
public class CloudFilesClient {
private final String username;
private final String apiKey;
private final RestTemplate rest = new RestTemplate();
private static final String AUTH_URL = "https://auth.api.rackspacecloud.com/v1.1/auth";
private static final String AUTH_DOCUMENT = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" +
"<credentials xmlns=\"http://docs.rackspacecloud.com/auth/api/v1.1\" " +
" username=\"%s\" " +
" key=\"%s\" />";
private CloudFilesClient (String aUsername, String aApiKey) {
username = aUsername;
apiKey = aApiKey;
}
public List<Map<String,Object>> listObjects (String aRegionName, String aContainerName) {
Map<String, Object> auth = auth();
Map<String, Object> cloudFiles = cloudFiles(auth, aRegionName);
HttpHeaders headers = new HttpHeaders();
headers.set("X-Auth-Token", token(auth));
HttpEntity<?> e = new HttpEntity<>(headers);
ResponseEntity<List> exchange = rest.exchange(((String)cloudFiles.get("publicURL"))+"/"+aContainerName, HttpMethod.GET, e, List.class);
return exchange.getBody();
}
public Map<String,Object> putObject (String aRegionName, String aContainerName, String aObjectName, String aLocalFilePath) throws IOException {
Map<String, Object> auth = auth();
Map<String, Object> cloudFiles = cloudFiles(auth, aRegionName);
String token = token(auth);
File file = new File(aLocalFilePath);
Assert.isTrue(file.exists(),"File not found: " + aLocalFilePath);
HttpHeaders headers = new HttpHeaders();
headers.set("X-Auth-Token", token);
headers.setContentType(MediaType.valueOf(Files.probeContentType(file.toPath())));
headers.setAccept(Collections.singletonList(MediaType.APPLICATION_JSON));
HttpEntity<Resource> requestEntity = new HttpEntity<>(new FileSystemResource(file), headers);
ResponseEntity<Map> result = rest.exchange(((String)cloudFiles.get("publicURL"))+"/"+aContainerName+"/"+aObjectName, HttpMethod.PUT, requestEntity,Map.class);
return result.getBody();
}
public String getTemporaryUrl (String aRegionName, String aContainerName, String aObjectName) throws URISyntaxException {
String key = UUID.randomUUID().toString();
Map<String, Object> auth = auth();
Map<String, Object> cloudFiles = cloudFiles(auth, aRegionName);
HttpHeaders headers = new HttpHeaders();
headers.set("X-Auth-Token", token(auth));
headers.set("X-Account-Meta-Temp-Url-Key", key);
HttpEntity<?> e = new HttpEntity<>(headers);
rest.exchange(((String)cloudFiles.get("publicURL")), HttpMethod.POST, e, List.class);
String method = "GET";
long expires = System.currentTimeMillis()/1000+3600;
URI endpoint = (new URI((String)cloudFiles.get("publicURL")));
String base = endpoint.getScheme()+"://"+endpoint.getHost();
String path = endpoint.getPath()+"/"+aContainerName+"/"+aObjectName;
String hmacBody = String.format("%s\n%s\n%s", method,expires,path);
String sig = HmacUtils.hmacSha1Hex(key, hmacBody);
return String.format("%s%s?temp_url_sig=%s&temp_url_expires=%s",base, path, sig, expires);
}
private Map<String,Object> auth () {
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_XML);
headers.setAccept(Collections.singletonList(MediaType.APPLICATION_JSON));
HttpEntity<String> requestEntity = new HttpEntity<>(String.format(AUTH_DOCUMENT,username,apiKey), headers);
ResponseEntity<Map> result = rest.exchange(AUTH_URL, HttpMethod.POST, requestEntity, Map.class);
Map<String,Object> body = result.getBody();
return (Map<String, Object>) body.get("auth");
}
private Map<String, Object> cloudFiles (Map<String,Object> aAuth, String aRegionName) {
Map<String, Object> catalog = (Map<String, Object>) aAuth.get("serviceCatalog");
List<Map<String, Object>> cloudFiles = (List<Map<String, Object>>) catalog.get("cloudFiles");
Optional<Map<String, Object>> region = cloudFiles.stream().filter(r->r.get("region").equals(aRegionName)).findFirst();
Assert.isTrue(region.isPresent(),"Unknown region: " + aRegionName);
return region.get();
}
private String token (Map<String,Object> aAuth) {
Map<String, Object> token = (Map<String, Object>) aAuth.get("token");
return (String)token.get("id");
}
public static CloudFilesClient build (String aUsername, String aApiKey) {
return new CloudFilesClient(aUsername, aApiKey);
}
}
答案 3 :(得分：0)
我几乎不了解gradle，SpringBoot或JClouds ......
将这些免责声明排除在外，我就这样破解了我的gradle构建文件：
dependencies {
...
// REQUIRED TO ALLOW JCLOUDS AND GSON TO PLAY NICELY.... XXX
compile 'com.google.code.gson:gson:2.5'
...
}
这似乎具有将GSON版本锁定到2.5的效果，这是适用于JCloud和SpringBoot的最新版本。有了这个hack，我可以构建并运行我的应用程序。