我正在使用Anypoint Studio将产品项目从SFTP升级到Salesforce。 我创建了一个mySftpMessageReceiver类，该类扩展了sftpMessageReceiver并覆盖了poll（）函数。
在我编写的poll（）函数中，我正在创建我编写的类JSchSFTPBrowser的实例。它使用JSch库。在此类中，有一个函数将rootDirectory和fileName作为参数。它会在rootDirectory的所有子文件夹中递归查找名称包含fileName的文件，并在字符串数组列表中返回路径。
在覆盖的poll（）函数中调用此函数后，我一个接一个地路由文件。
然后，Salesforce Connector将产品升级到Salesforce。
下面是我的代码：
M子应用程序配置XML：
<?xml version="1.0" encoding="UTF-8"?>
<mule xmlns:batch="http://www.mulesoft.org/schema/mule/batch" xmlns:tracking="http://www.mulesoft.org/schema/mule/ee/tracking" xmlns:metadata="http://www.mulesoft.org/schema/mule/metadata" xmlns:file="http://www.mulesoft.org/schema/mule/file" xmlns:dw="http://www.mulesoft.org/schema/mule/ee/dw" xmlns:sfdc="http://www.mulesoft.org/schema/mule/sfdc" xmlns:sftp="http://www.mulesoft.org/schema/mule/sftp" xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
xmlns:spring="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-current.xsd
http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd
http://www.mulesoft.org/schema/mule/sftp http://www.mulesoft.org/schema/mule/sftp/current/mule-sftp.xsd
http://www.mulesoft.org/schema/mule/sfdc http://www.mulesoft.org/schema/mule/sfdc/current/mule-sfdc.xsd
http://www.mulesoft.org/schema/mule/ee/dw http://www.mulesoft.org/schema/mule/ee/dw/current/dw.xsd
http://www.mulesoft.org/schema/mule/file http://www.mulesoft.org/schema/mule/file/current/mule-file.xsd
http://www.mulesoft.org/schema/mule/ee/tracking http://www.mulesoft.org/schema/mule/ee/tracking/current/mule-tracking-ee.xsd
http://www.mulesoft.org/schema/mule/batch http://www.mulesoft.org/schema/mule/batch/current/mule-batch.xsd">
<sfdc:config name="Salesforce__Basic_Authentication" username="username" password="pass" securityToken="securitytoken" url="url" doc:name="Salesforce: Basic Authentication"/>
<sftp:connector name="SFTPConfig" validateConnections="true" autoDelete="false" doc:name="SFTP">
<service-overrides messageReceiver="my.package.MySftpMessageReceiver"/>
</sftp:connector>
<flow name="myFlow">
<sftp:inbound-endpoint host="host" port="##" user="user" password="pass" responseTimeout="10000" doc:name="SFTP" autoDelete="false" connector-ref="SFTPConfig" pollingFrequency="15000" path="/"/>
<dw:transform-message doc:name="Transform Message" metadata:id="007db759-7ccf-44fd-b053-0a67709fd56b">
<dw:input-payload mimeType="application/csv"/>
<dw:set-payload><![CDATA[%dw 1.0
%output application/java
---
payload map ((payload01 , indexOfPayload01) -> {
Name: payload01.ITEM_DESC,
Product_Number__c: payload01.ITEM_NUMBER,
Primary_VPN__c: payload01.PRIMARY_VPN,
Department_ID__c: payload01.DEPARTMENT_ID,
Department_Name__c: payload01.DEPARTMENT_NAME,
Class_ID__c: payload01.CLASS_ID,
SubClass_ID__c: payload01.SUBCLASS_ID,
SubClass_Name__c: payload01.SUBCLASS_NAME,
Department_Brand__c: payload01.DEPARTMENT_BRAND,
Gender__c: payload01.GENDER,
Season__c: payload01.SEASON,
Size__c: payload01.SIZE,
Color__c: payload01.COLOR,
Line__c: payload01.LINE,
Sub_Line__c: payload01."SUB LINE",
Supplier_Class__c: payload01."SUPPLIER CLASS",
Supplier_SubClass__c: payload01."SUPPLIER SUBCLASS"
})]]></dw:set-payload>
</dw:transform-message>
<sfdc:upsert-bulk config-ref="Salesforce__Basic_Authentication" type="Product__c" externalIdFieldName="Product_Number__c" doc:name="Salesforce">
<sfdc:objects ref="#[payload]"/>
</sfdc:upsert-bulk>
</flow>
</mule>
MySftpMessageReceiver.java
package my.package;
import org.mule.api.construct.FlowConstruct;
import org.mule.api.endpoint.InboundEndpoint;
import org.mule.api.lifecycle.CreateException;
import org.mule.transport.sftp.SftpConnector;
import org.mule.transport.sftp.SftpMessageReceiver;
public class MySftpMessageReceiver extends SftpMessageReceiver {
private JSchSFTPBrowser jschSftpBrowser = null;
public MySftpMessageReceiver(SftpConnector connector, FlowConstruct flow, InboundEndpoint endpoint)
throws CreateException {
super(connector, flow, endpoint);
jschSftpBrowser = new JSchSFTPBrowser();
}
public MySftpMessageReceiver(SftpConnector connector, FlowConstruct flow, InboundEndpoint endpoint,
long frequency) throws CreateException {
super(connector, flow, endpoint, frequency);
jschSftpBrowser = new JSchSFTPBrowser();
}
@Override
public void poll() throws Exception {
//Get Paths
this.jschSftpBrowser.lookForFile("/Salesforce", "ITEM_MASTER");
int count = jschSftpBrowser.getFilePaths().size();
if (count == 0) {
System.out.println("\nNo result found!");
} else {
System.out.println("\nFound file" + count + " times!\n");
//route them
for (String file: jschSftpBrowser.getFilePaths()) {
routeFile(file);
}
}
//jschSftpBrowser.disconnect();
}
}
JSchSFTPBrowser.java
package my.package;
import java.util.ArrayList;
import java.util.List;
import java.util.Vector;
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.SftpException;
public class JSchSFTPBrowser {
/* Properties, Getters & Setters */
private String SFTPHOST = "host";
private String SFTPUSER = "user";
private String SFTPPASS = "pass";
private int SFTPPORT = ##;
Session session = null;
Channel channel = null;
ChannelSftp sftpChannel = null;
private List<String> filePaths;
public List<String> getFilePaths(){
return this.filePaths;
}
/* Constructor */
public JSchSFTPBrowser() {
filePaths = new ArrayList <String> ();
try {
JSch jsch = new JSch();
session = jsch.getSession(SFTPUSER, SFTPHOST, SFTPPORT);
session.setPassword(SFTPPASS);
java.util.Properties config = new java.util.Properties();
config.put("StrictHostKeyChecking", "no");
session.setConfig(config);
session.connect();
channel = session.openChannel("sftp");
channel.connect();
sftpChannel = (ChannelSftp) channel;
}
catch (Exception ex) {
ex.printStackTrace();
}
}
/* Looks for file in all sub-folders of given directory */
@SuppressWarnings("unchecked")
public void lookForFile(String sourcePath, String fileName) throws SftpException {
try {
Vector<ChannelSftp.LsEntry> list = sftpChannel.ls(sourcePath); // List source directory structure.
for (ChannelSftp.LsEntry oListItem : list)
{ // Iterate objects in the list to get file/folder names.
if (!oListItem.getAttrs().isDir()) { // If it is a file (not a directory).
if (oListItem.getFilename().contains(fileName)){
String path = sourcePath + "/" + oListItem.getFilename();
System.out.println("File found! Path: " + path);
filePaths.add(path);
}
}
else if (!(".".equals(oListItem.getFilename()) || "..".equals(oListItem.getFilename()))){
lookForFile(sourcePath + "/" + oListItem.getFilename(), fileName); // Enter found folder on server to read its contents.
}
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
public void disconnect() {
while(session != null){
System.out.println("Killing the session");
this.session.disconnect();
System.exit(0);
}
}
}
我遇到以下错误：
org.mule.module.launcher.DeploymentStartException: NullPointerException:
at org.mule.module.launcher.application.DefaultMuleApplication.start(DefaultMuleApplication.java:178) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.artifact.ArtifactWrapper$4.execute(ArtifactWrapper.java:106) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.artifact.ArtifactWrapper.executeWithinArtifactClassLoader(ArtifactWrapper.java:137) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.artifact.ArtifactWrapper.start(ArtifactWrapper.java:101) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.DefaultArtifactDeployer.deploy(DefaultArtifactDeployer.java:73) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.DefaultArchiveDeployer.deployArtifact(DefaultArchiveDeployer.java:547) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.DefaultArchiveDeployer.deployArtifact(DefaultArchiveDeployer.java:325) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.DefaultArchiveDeployer.deployPackagedArtifact(DefaultArchiveDeployer.java:185) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.DefaultArchiveDeployer.deployPackagedArtifact(DefaultArchiveDeployer.java:274) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.DefaultArchiveDeployer.deployPackagedArtifact(DefaultArchiveDeployer.java:80) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.DefaultArchiveDeployer.deployPackagedArtifact(DefaultArchiveDeployer.java:577) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.DeploymentDirectoryWatcher.deployPackedApps(DeploymentDirectoryWatcher.java:283) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.DeploymentDirectoryWatcher.start(DeploymentDirectoryWatcher.java:155) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.MuleDeploymentService.start(MuleDeploymentService.java:135) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.module.launcher.MuleContainer.start(MuleContainer.java:172) ~[mule-module-launcher-3.9.1.jar:3.9.1]
at org.mule.tooling.server.application.ApplicationDeployer.main(ApplicationDeployer.java:15) ~[tooling-support-3.9.1.jar:?]
Caused by: org.mule.api.lifecycle.LifecycleException: Failed to start inbound endpoint "endpoint.sftp.213.42.122.6.22"
at org.mule.endpoint.DefaultInboundEndpoint.start(DefaultInboundEndpoint.java:119) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.api.lifecycle.LifecycleUtils.startIfNeeded(LifecycleUtils.java:92) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.startMessageSource(DefaultMuleContext.java:391) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.startPipelineMessageSources(DefaultMuleContext.java:382) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.startMessageSources(DefaultMuleContext.java:345) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.start(DefaultMuleContext.java:329) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.module.launcher.application.DefaultMuleApplication.start(DefaultMuleApplication.java:146) ~[mule-module-launcher-3.9.1.jar:3.9.1]
... 15 more
Caused by: org.mule.retry.RetryPolicyExhaustedException: Fail to connect
at org.mule.retry.policies.AbstractPolicyTemplate.execute(AbstractPolicyTemplate.java:111) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.transport.sftp.SftpMessageReceiver.doConnect(SftpMessageReceiver.java:296) ~[mule-transport-sftp-3.9.1.jar:3.9.1]
at org.mule.transport.AbstractMessageReceiver.connectHandler(AbstractMessageReceiver.java:448) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.transport.AbstractTransportMessageHandler.connect(AbstractTransportMessageHandler.java:217) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.transport.AbstractConnector.registerListener(AbstractConnector.java:1299) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.endpoint.DefaultInboundEndpoint.start(DefaultInboundEndpoint.java:105) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.api.lifecycle.LifecycleUtils.startIfNeeded(LifecycleUtils.java:92) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.startMessageSource(DefaultMuleContext.java:391) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.startPipelineMessageSources(DefaultMuleContext.java:382) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.startMessageSources(DefaultMuleContext.java:345) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.start(DefaultMuleContext.java:329) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.module.launcher.application.DefaultMuleApplication.start(DefaultMuleApplication.java:146) ~[mule-module-launcher-3.9.1.jar:3.9.1]
... 15 more
Caused by: java.lang.Exception: Fail to connect
at org.mule.transport.sftp.SftpMessageReceiver$2.doWork(SftpMessageReceiver.java:322) ~[mule-transport-sftp-3.9.1.jar:3.9.1]
at org.mule.retry.policies.AbstractPolicyTemplate.execute(AbstractPolicyTemplate.java:63) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.transport.sftp.SftpMessageReceiver.doConnect(SftpMessageReceiver.java:296) ~[mule-transport-sftp-3.9.1.jar:3.9.1]
at org.mule.transport.AbstractMessageReceiver.connectHandler(AbstractMessageReceiver.java:448) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.transport.AbstractTransportMessageHandler.connect(AbstractTransportMessageHandler.java:217) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.transport.AbstractConnector.registerListener(AbstractConnector.java:1299) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.endpoint.DefaultInboundEndpoint.start(DefaultInboundEndpoint.java:105) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.api.lifecycle.LifecycleUtils.startIfNeeded(LifecycleUtils.java:92) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.startMessageSource(DefaultMuleContext.java:391) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.startPipelineMessageSources(DefaultMuleContext.java:382) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.startMessageSources(DefaultMuleContext.java:345) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.start(DefaultMuleContext.java:329) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.module.launcher.application.DefaultMuleApplication.start(DefaultMuleApplication.java:146) ~[mule-module-launcher-3.9.1.jar:3.9.1]
... 15 more
Caused by: java.lang.NullPointerException
at org.mule.transport.sftp.SftpConnector.releaseClient(SftpConnector.java:269) ~[mule-transport-sftp-3.9.1.jar:3.9.1]
at org.mule.transport.sftp.SftpReceiverRequesterUtil.checkSFTPConnection(SftpReceiverRequesterUtil.java:169) ~[mule-transport-sftp-3.9.1.jar:3.9.1]
at org.mule.transport.sftp.SftpMessageReceiver$2.doWork(SftpMessageReceiver.java:307) ~[mule-transport-sftp-3.9.1.jar:3.9.1]
at org.mule.retry.policies.AbstractPolicyTemplate.execute(AbstractPolicyTemplate.java:63) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.transport.sftp.SftpMessageReceiver.doConnect(SftpMessageReceiver.java:296) ~[mule-transport-sftp-3.9.1.jar:3.9.1]
at org.mule.transport.AbstractMessageReceiver.connectHandler(AbstractMessageReceiver.java:448) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.transport.AbstractTransportMessageHandler.connect(AbstractTransportMessageHandler.java:217) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.transport.AbstractConnector.registerListener(AbstractConnector.java:1299) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.endpoint.DefaultInboundEndpoint.start(DefaultInboundEndpoint.java:105) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.api.lifecycle.LifecycleUtils.startIfNeeded(LifecycleUtils.java:92) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.startMessageSource(DefaultMuleContext.java:391) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.startPipelineMessageSources(DefaultMuleContext.java:382) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.startMessageSources(DefaultMuleContext.java:345) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.DefaultMuleContext.start(DefaultMuleContext.java:329) ~[mule-core-3.9.1.jar:3.9.1]
at org.mule.module.launcher.application.DefaultMuleApplication.start(DefaultMuleApplication.java:146) ~[mule-module-launcher-3.9.1.jar:3.9.1]
... 15 more
INFO 2018-11-25 18:17:33,627 [main] org.mule.module.launcher.DeploymentDirectoryWatcher:
以上是集成的所有代码。 这是我的第一个测试也是第一个例外。 任何帮助使此集成工作的帮助都将受到赞赏。 谢谢！
答案 0 :(得分：0)
您确定SFTPConfig存在吗？如果是，您也可以分享。
在查看日志时，您似乎无法连接到sftp本身。删除服务覆盖后，代码是否会编译