使用 SAP Cloud SDK 版本 3.2.0 向 OData 服务发送 POST 请求

Question

我正在开发一个使用 SAP Cloud SDK 的应用程序。我之前使用 SAP Cloud SDK 的 2.20.1 版本并发送了一个 POST 请求 到 OData 服务。这是我用来发送 POST 请求:

的代码

final ODataCreateRequestImpl createRequest =
            new ODataCreateRequestImpl("/sap/opu/odata/sap/ZAS_BP_CREATION_SRV",
                    "BP_DATASet", bodyAsMap, null, null, null, headersAsMap, null, false, null, null, false);

    JSONObject jsonResponse = null;

    try {

        Map<String, Object> resp = createRequest.execute("ErpQueryEndpoint").asMap();
        jsonResponse = new JSONObject(resp);

    } catch(final ODataException e) {
        logger.error(e.getMessage(), e);
    }
    catch(final JSONException e) {
        logger.error(e.getMessage(), e);
    }

更新SAP Cloud SDK版本到3.2.0后，发送POST请求时出现如下错误：

Handler dispatch failed; nested exception is java.lang.NoSuchMethodError: com.sap.cloud.sdk.cloudplatform.connectivity.HttpClientAccessor.getHttpClient(Ljava/lang/String;)Lorg/apache/http/client/HttpClient;

我知道NoSuchMethodError的原因，调用ODataCreateRequestImpl[的execute方法时出错=58=] class，这个 class 在 com.sap.cloud.servicesdk:odatav2-connectivity:1.32.5.jar，并且在某个时候,当调用ODataCreateRequestImplclass的execute方法时,getHttpClient方法属于 com.sap.cloud.sdk.cloudplatform:cloudplatform-connectivity:3.2.0.jar 的 HttpClientAccessor class 被调用，在这个class中，方法签名是public static HttpClient getHttpClient(@Nonnull HttpDestinationProperties destination)，但是我得到的错误是因为这个方法在运行时的签名不同，它期望接收到一个String 参数而不是 HttpDestinationProperties.

我认为这是因为我不应该使用 ODataCreateRequestImpl class 来执行 POST在 SAP Cloud SDK 的 3.2.0 版中请求，尽管它在 2.20.1 版 中运行得很好].要从 版本 2.20.1 SAP Cloud SDK 迁移到 版本 3.2.0，我遵循了这些指南:

https://developers.sap.com/tutorials/s4sdk-migration-v3.html

https://blogs.sap.com/2019/08/01/migrate-to-version-3.0.0-of-the-sap-cloud-sdk-for-java/

有人可以帮我找到一个解决方案来执行对 OData 服务的 POST 请求吗？

这是我pom.xml的内容：

<?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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.atlantida.services</groupId> <artifactId>account</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>atlantida</name> <dependencyManagement> <dependencies> <dependency> <groupId>com.sap.cloud.sdk</groupId> <artifactId>sdk-bom</artifactId> <version>3.2.0</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <properties> <java-version>1.8</java-version> <springframework.version>5.1.8.RELEASE</springframework.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <junit.version>4.11</junit.version> <jackson-version>2.9.2</jackson-version> <lombok.version>1.18.8</lombok.version> <jcl.slf4j.version>1.7.12</jcl.slf4j.version> <logback.version>1.1.3</logback.version>  <proxy.host /> <proxy.port /> <non.proxy.hosts />  <scp.sdkVersion>1.44.12</scp.sdkVersion>  <scp.sdkInstallPath>${project.basedir}/scp/sdk-${scp.sdkVersion}</scp.sdkInstallPath> <scp.sdkLocalServerContentPath>${project.basedir}/localServerContent</scp.sdkLocalServerContentPath> <scp.sdkErpEndpoint>${scp.sdkInstallPath}/server/config_master/service.destinations/destinations/ErpQueryEndpoint</scp.sdkErpEndpoint> <scp.sdkSymbolicLink>${project.basedir}/scp/sdk</scp.sdkSymbolicLink> <scp.sdkNeoCmdExtension>.sh</scp.sdkNeoCmdExtension> <scp.sdkNeoCmd>${scp.sdkInstallPath}/tools/neo${scp.sdkNeoCmdExtension}</scp.sdkNeoCmd> <scp.sdkLocalServer>${scp.sdkInstallPath}/server</scp.sdkLocalServer> <scp.skipInstallSdk>false</scp.skipInstallSdk> <scp.skipDeploy>false</scp.skipDeploy> <scp.skipPutDestination>false</scp.skipPutDestination> <scp.skipRestart>false</scp.skipRestart> <scp.skipRollingUpdate>true</scp.skipRollingUpdate> <scp.vmArguments /> <scp.vmSize>lite</scp.vmSize> <scp.vmMinProcesses>1</scp.vmMinProcesses> <scp.vmMaxProcesses>1</scp.vmMaxProcesses> <scp.app /> <scp.host /> <scp.account /> <scp.username /> <scp.password />  <scp.warImportPackage>com.sap.security.auth.service,com.sap.security.um.service.api,com.sap.core.service.auditlog.impl,com.sap.cloud.auditlog,com.sap.cloud.auditlog.exception,com.sap.cloud.auditlog.extension</scp.warImportPackage>  <productive /> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${springframework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${springframework.version}</version> </dependency>  <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>4.0.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>${jackson-version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson-version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.datatype</groupId> <artifactId>jackson-datatype-jsr310</artifactId> </dependency>  <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>${lombok.version}</version> <scope>provided</scope> </dependency> <dependency> <groupId>com.googlecode.json-simple</groupId> <artifactId>json-simple</artifactId> <version>1.1.1</version> </dependency>  <dependency> <groupId>org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> <version>${jcl.slf4j.version}</version> </dependency>  <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>${logback.version}</version> </dependency>        <dependency> <groupId>org.json</groupId> <artifactId>json</artifactId> <version>20190722</version> </dependency> <dependency> <groupId>com.sap.cloud.sdk.cloudplatform</groupId> <artifactId>scp-neo</artifactId> </dependency> <dependency> <groupId>com.sap.cloud.sdk.s4hana</groupId> <artifactId>s4hana-all</artifactId> </dependency> <dependency> <groupId>com.sap.cloud.sdk.cloudplatform</groupId> <artifactId>security-servlet</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>javax.inject</groupId> <artifactId>javax.inject</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>com.sap.cloud</groupId> <artifactId>neo-javaee7-wp-api</artifactId> <scope>provided</scope> </dependency> </dependencies> <build> <finalName>atlantida</finalName> <pluginManagement> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-enforcer-plugin</artifactId> <version>3.0.0-M2</version> <executions> <execution> <id>SAP Cloud SDK Project Structure Checks</id> <goals> <goal>enforce</goal> </goals> <configuration> <rules> <requireMavenVersion> <version>3.5</version> </requireMavenVersion> <requireJavaVersion> <version>${java.version}</version> </requireJavaVersion> <reactorModuleConvergence /> </rules> <fail>true</fail> </configuration> </execution> </executions> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <version>3.2.2</version> <configuration> <attachClasses>true</attachClasses> <archive> <manifestEntries> <Version>${project.version}</Version> <Import-Package>${scp.warImportPackage}</Import-Package> </manifestEntries> </archive> <webResources> <resources> <filtering>true</filtering> <directory>src/main/webapp</directory> <includes> <include>**/web.xml</include> </includes> </resources> </webResources> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>3.1.1</version> <configuration> <artifactItems> <artifactItem> <groupId>com.sap.cloud</groupId> <artifactId>neo-javaee7-wp-sdk</artifactId> <version>${scp.sdkVersion}</version> <type>zip</type> <overWrite>false</overWrite> <outputDirectory>${scp.sdkInstallPath}</outputDirectory> </artifactItem> </artifactItems> </configuration> </plugin>  <plugin> <groupId>com.sap.cloud</groupId> <artifactId>neo-javaee7-wp-maven-plugin</artifactId> <version>${scp.sdkVersion}</version> <executions> <execution> <id>stop</id> <phase>install</phase> <goals> <goal>stop</goal> </goals> <configuration> <skip>${scp.skipRestart}</skip> </configuration> </execution> <execution> <id>deploy</id> <phase>install</phase> <goals> <goal>deploy</goal> </goals> <configuration> <skip>${scp.skipDeploy}</skip> <vmArguments>${scp.vmArguments}</vmArguments> </configuration> </execution> <execution> <id>start</id> <phase>install</phase> <goals> <goal>start</goal> </goals> <configuration> <skip>${scp.skipRestart}</skip> </configuration> </execution> <execution> <id>rolling-update</id> <phase>install</phase> <goals> <goal>rolling-update</goal> </goals> <configuration> <skip>${scp.skipRollingUpdate}</skip> </configuration> </execution> </executions> <configuration> <sdkInstallPath>${scp.sdkInstallPath}</sdkInstallPath> <skip>${scp.skipInstallSdk}</skip> <application>${scp.app}</application> <source>${project.build.directory}/${project.build.finalName}.war</source> <vmArguments>${scp.vmArguments}</vmArguments> <size>${scp.vmSize}</size> <minimumProcesses>${scp.vmMinProcesses}</minimumProcesses> <maximumProcesses>${scp.vmMaxProcesses}</maximumProcesses> <host>${scp.host}</host> <account>${scp.account}</account> <user>${scp.username}</user> <password>${scp.password}</password> <synchronous>true</synchronous> <httpProxyHost>${proxy.host}</httpProxyHost> <httpProxyPort>${proxy.port}</httpProxyPort> <httpsProxyHost>${proxy.host}</httpsProxyHost> <httpsProxyPort>${proxy.port}</httpsProxyPort> <consoleCommand /> <consoleHttpProxyHost>${proxy.host}</consoleHttpProxyHost> <consoleHttpProxyPort>${proxy.port}</consoleHttpProxyPort> <consoleHttpsProxyHost>${proxy.host}</consoleHttpsProxyHost> <consoleHttpsProxyPort>${proxy.port}</consoleHttpsProxyPort> <dbsystem /> <dbSize /> <dbUser /> </configuration> </plugin>  <plugin> <groupId>com.sap.cloud.sdk.plugins</groupId> <artifactId>scp-neo-maven-plugin</artifactId> <version>3.2.0</version> <configuration> <sdkPlugin>neo-javaee7-wp-maven-plugin</sdkPlugin> <sdkPluginVersion>${scp.sdkVersion}</sdkPluginVersion> <sdkInstallPath>${scp.sdkInstallPath}</sdkInstallPath> <sdkSymbolicLink>${scp.sdkSymbolicLink}</sdkSymbolicLink> <sdkServerContentPath>${scp.sdkLocalServerContentPath}</sdkServerContentPath> <source>${project.build.directory}/${project.build.finalName}.war</source> <proxyHost>${proxy.host}</proxyHost> <proxyPort>${proxy.port}</proxyPort> <httpNonProxyHosts>${non.proxy.hosts}</httpNonProxyHosts> <destinations> <destination> <path>${scp.sdkErpEndpoint}</path> <username>achacon</username> <password>achacon100</password> <url>http://sapcrmdev.adbancat.hn:8000</url> </destination> </destinations> </configuration> </plugin> </plugins> </pluginManagement> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.8.1</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <plugin> <groupId>com.sap.cloud.sdk.plugins</groupId> <artifactId>usage-analytics-maven-plugin</artifactId> <version>3.2.0</version> <executions> <execution> <goals> <goal>usage-analytics</goal> </goals> <configuration> <skipUsageAnalytics>false</skipUsageAnalytics> <generateSalt>true</generateSalt>  <salt>5d5e4e1e8a5f05d547fe8880f65173bda150a670f91f3657b970eaa9e7a4d392</salt> </configuration> </execution> </executions> </plugin> </plugins> </build> <profiles>  <profile> <id>windows</id> <activation> <os> <family>windows</family> </os> </activation> <properties> <scp.sdkNeoCmdExtension>.bat</scp.sdkNeoCmdExtension> </properties> </profile> <profile> <id>unix</id> <activation> <os> <family>unix</family> </os> </activation> <properties> <scp.sdkNeoCmdExtension>.sh</scp.sdkNeoCmdExtension> </properties> </profile>  <profile> <id>local-deploy</id> <activation> <property> <name>!scp.app</name> </property> </activation> <properties> <scp.skipInstallSdk>true</scp.skipInstallSdk> <scp.skipDeploy>true</scp.skipDeploy> <scp.skipPutDestination>true</scp.skipPutDestination> <scp.skipRestart>true</scp.skipRestart> <scp.skipRollingUpdate>true</scp.skipRollingUpdate> </properties> </profile>  <profile> <id>scp-deploy</id> <activation> <property> <name>productive</name> </property> </activation> <properties> <scp.skipInstallSdk>false</scp.skipInstallSdk> <scp.skipDeploy>true</scp.skipDeploy> <scp.skipPutDestination>false</scp.skipPutDestination> <scp.skipRestart>true</scp.skipRestart> <scp.skipRollingUpdate>false</scp.skipRollingUpdate> </properties> </profile> </profiles> </project>

Answer 1

一个有据可查的问题！不幸的是，Cloud SDK (com.sap.cloud.sdk.*) 中的 Service SDK (com.sap.cloud.servicesdk.*) 的附加版本似乎有一些之前未跟踪的内部依赖兼容性问题。

解法： 请尝试使用版本 3.9.0（或更高版本），而不是 Cloud SDK 版本 3.2.0。该问题已在该更新中得到修复。不用担心版本号的跳跃。我不希望您的应用程序代码出现兼容性问题。

或者，如果您确定要使用 3.2.0 版本，则可以在 POM 中手动添加兼容的 Service SDK 依赖版本，例如1.35.2（或更高版本）。

Answer 2

基本上有两种解决问题的方法：

通过我们的 Maven 插件创建您自己的 OData VDM。这样您就可以获得对服务的类型安全访问，而无需理会请求中的字符串。对于粗略的指南，您可以遵循 this guide，但请注意它是为 SDK 的版本 2 编写的。我们正在为版本 3 更新我们的博客文章，但目前您必须自己迁移它（应该不会比更改 groupId 和 artifactId 多得多）。

请改用 execute(HttpClient) 方法，例如那样：

// altenative to create a Destination at runtime:
// HttpDestination destination = DefaultHttpDestination.builder("https://www.google.de").build();
HttpDestination destination = DestinationAccessor.getDestination("ErpQueryEndpoint").asHttp();
HttpClient httpClient = HttpClientAccessor.getHttpClient(destination);
Map<String, Object> resp = createRequest.execute(httpClient).asMap();

这应该没有问题。

使用 SAP Cloud SDK 版本 3.2.0 向 OData 服务发送 POST 请求

Send POST request to OData service using SAP Cloud SDK version 3.2.0

java

odata

sap-cloud-platform

sap-cloud-sdk