java 调用 sap rfc函数 rfc函数是自定义的还是sap系统组件自带的

RFC即可以是自定义的function也可以是sap系统组稿告件自带的(如BAPI)。但是自己自定义的function必须勾选Remote-Enabled

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Module.

RFC

是Remote

Function

Call

简称，SAP系统和其他(SAP或非SAP)系统间的一个重要键宽明而常用的双巧信向接口技术，也被视为SAP与外部通信的基本协议。

sap如何使用函数

sap工具栏上有个 模式点进去输入函数名字再确定就能调用函数了e

JAVA怎么才能调用SAP的函数？谢谢

给你举个例子吧，如下：

1:Sap 域模型

package abc;

public class SapSystem implements java.lang.Cloneable {

private final String name;

private final String host;

private final String client;

private final String systemNumber;

private final String user;

private final String password;

private final String language ="en"; // English will be used as login language

/**

* Constructor, Login language is assumed to be English

* @param name

* @param client

* @param user

* @param password

* @param host

* @param systemNumber

*/

public SapSystem(String name, String host, String client

, String systemNumber, String user, String password) {

this.name = name;

this.client = client;

this.user = user;

this.password = password;

this.host = host;

this.systemNumber = systemNumber;

}

public String getName() {

return name;

}

public String getClient() {

return client;

}

public String getUser() {

return user;

}

public String getPassword() {

return password;

}

public String getLanguage() {

return language;

}

public String getHost() {

return host;

}

public String getSystemNumber() {

return systemNumber;

}

@Override

public String toString() {

return "Client " + client + " User " + user + " PW " + password

+ " Language " + language + " Host " + host + " SysID "

+ systemNumber;

}

@Override

public int hashCode() {

final int prime = 31;

int result = 1;

result = prime * result + ((client == null) ? 0 : client.hashCode());

result = prime * result + ((host == null) ? 0 : host.hashCode());

result = prime * result

+ ((language == null) ? 0 : language.hashCode());

result = prime * result + ((name == null) ? 0 : name.hashCode());

result = prime * result

+ ((password == null) ? 0 : password.hashCode());

result = prime * result

+ ((systemNumber == null) ? 0 : systemNumber.hashCode());

result = prime * result + ((user == null) ? 0 : user.hashCode());

return result;

}

@Override

public boolean equals(Object obj) {

if (this == obj)

return true;

if (obj == null)

return false;

if (getClass() != obj.getClass())

return false;

SapSystem other = (SapSystem) obj;

if (client == null) {

if (other.client != null)

return false;

} else if (!client.equals(other.client))

return false;

if (host == null) {

if (other.host != null)

return false;

} else if (!host.equals(other.host))

return false;

if (language == null) {

if (other.language != null)

return false;

} else if (!language.equals(other.language))

return false;

if (name == null) {

if (other.name != null)

return false;

} else if (!name.equals(other.name))

return false;

if (password == null) {

if (other.password != null)

return false;

} else if (!password.equals(other.password))

return false;

if (systemNumber == null) {

if (other.systemNumber != null)

return false;

} else if (!systemNumber.equals(other.systemNumber))

return false;

if (user == null) {

if (other.user != null)

return false;

} else if (!user.equals(other.user))

return false;

return true;

}

@Override

public Object clone() {

try {

return super.clone();

} catch (CloneNotSupportedException e) {

e.printStackTrace();

}

return null;

}

}

=====================================

2：建立连接

import java.util.Properties;

import com.sap.conn.jco.ext.DestinationDataEventListener;

import com.sap.conn.jco.ext.DestinationDataProvider;

import de.vogella.sap.system.model.SapSystem;

/**

* Represents the destination to a specific SAP system.

* The destination is maintained via a property file

*

*/

public class MyDestinationDataProvider implements DestinationDataProvider {

static String SAP_SERVER = "SAP_SERVER";

private final Properties ABAP_AS_properties;

public MyDestinationDataProvider(SapSystem system) {

Properties properties = new Properties();

properties.setProperty(DestinationDataProvider.JCO_ASHOST, system

.getHost());

properties.setProperty(DestinationDataProvider.JCO_SYSNR, system

.getSystemNumber());

properties.setProperty(DestinationDataProvider.JCO_CLIENT, system

.getClient());

properties.setProperty(DestinationDataProvider.JCO_USER, system

.getUser());

properties.setProperty(DestinationDataProvider.JCO_PASSWD, system

.getPassword());

ABAP_AS_properties = properties;

}

@Override

public Properties getDestinationProperties(String system) {

return ABAP_AS_properties;

}

@Override

public void setDestinationDataEventListener(

DestinationDataEventListener eventListener) {

}

@Override

public boolean supportsEvents() {

return false;

}

}

==================

import com.sap.conn.jco.JCoContext;

import com.sap.conn.jco.JCoDestination;

import com.sap.conn.jco.JCoDestinationManager;

import com.sap.conn.jco.JCoException;

import com.sap.conn.jco.JCoFunction;

import com.sap.conn.jco.JCoRepository;

import de.vogella.sap.system.model.SapSystem;

/**

* Connection allows to get and execute SAP functions. The constructor expect a

* SapSystem and will save the connection data to a file. The connection will

* also be automatically be established.

*/

public class Connection {

static String SAP_SERVER = "SAP_SERVER";

private JCoRepository repos;

private JCoDestination dest;

public Connection(SapSystem system) {

MyDestinationDataProvider myProvider = new MyDestinationDataProvider(system);

com.sap.conn.jco.ext.Environment

.registerDestinationDataProvider(myProvider);

try {

dest = JCoDestinationManager.getDestination(SAP_SERVER);

System.out.println("Attributes:");

System.out.println(dest.getAttributes());

repos = dest.getRepository();

} catch (JCoException e) {

throw new RuntimeException(e);

}

}

/**

* Method getFunction read a SAP Function and return it to the caller. The

* caller can then set parameters (import, export, tables) on this function

* and call later the method execute.

*

* getFunction translates the JCo checked exceptions into a non-checked

* exceptions

*/

public JCoFunction getFunction(String functionStr) {

JCoFunction function = null;

try {

function = repos.getFunction(functionStr);

} catch (Exception e) {

e.printStackTrace();

throw new RuntimeException(

"Problem retrieving JCO.Function object.");

}

if (function == null) {

throw new RuntimeException("Not possible to receive function. ");

}

return function;

}

/**

* Method execute will call a function. The Caller of this function has

* already set all required parameters of the function

*

*/

public void execute(JCoFunction function) {

try {

JCoContext.begin(dest);

function.execute(dest);

} catch (JCoException e) {

e.printStackTrace();

} finally {

try {

JCoContext.end(dest);

} catch (JCoException e) {

e.printStackTrace();

}

}

}

}

======================

3：测试连接

import static org.junit.Assert.assertTrue;

import org.junit.Test;

import com.sap.conn.jco.JCoFunction;

import com.sap.conn.jco.JCoTable;

import de.vogella.sap.rfc.core.connection.Connection;

import de.vogella.sap.system.model.SapSystem;

public class ConnectionTester {

static String SAP = "SAP_SERVER";

@Test

public void checkConnection() {

// SAP System

SapSystem system = new SapSystem("PFT", "pwdf6394.wdf.sap.corp", "600", "76", "mytester", "welcome");

Connection connect = new Connection(system);

JCoFunction function = connect.getFunction("BAPI_USER_GETLIST");

function.getImportParameterList().setValue("MAX_ROWS", 10);

connect.execute(function);

JCoTable table = function.getTableParameterList().getTable("USERLIST");

assertTrue("User Tabelle should not be empty", !table.isEmpty());

}

}

======================

4:简化JCo存取

import com.sap.conn.jco.JCoTable;

/**

* TableAdapter is used to simplify the reading of the values of the Jco tables

*/

public class TableAdapterReader {

protected JCoTable table;

public TableAdapterReader(JCoTable table) {

this.table = table;

}

public String get(String s) {

return table.getValue(s).toString();

}

public Boolean getBoolean(String s) {

String value = table.getValue(s).toString();

return value.equals("X");

}

public String getMessage() {

return table.getString("MESSAGE");

}

public int size() {

return table.getNumRows();

}

public void next() {

table.nextRow();

}

}

5:最后测试

import static org.junit.Assert.assertNotNull;

import static org.junit.Assert.assertTrue;

import org.junit.Test;

import com.sap.conn.jco.JCoFunction;

import com.sap.conn.jco.JCoTable;

import de.vogella.sap.rfc.core.connection.Connection;

import de.vogella.sap.rfc.helper.TableAdapterReader;

import de.vogella.sap.system.model.SapSystem;

public class TableAdapterTester {

@Test

public void checkConnection() {

// SAP System

SapSystem system = new SapSystem("PFT", "pwdf6394.wdf.sap.corp", "600",

"76", "mytester", "welcome");

Connection connect = new Connection(system);

JCoFunction function = connect.getFunction("BAPI_USER_GETLIST");

function.getImportParameterList().setValue("MAX_ROWS", 10);

connect.execute(function);

JCoTable table = function.getTableParameterList().getTable("USERLIST");

TableAdapterReader adapter = new TableAdapterReader(table);

System.out.println("Number of Users: " + adapter.size());

for (int i = 0; i adapter.size(); i++) {

// USERNAME is a column in the table "USERLIST"

String s = adapter.get("USERNAME");

assertNotNull(s);

assertTrue(s.length() 0);

System.out.println(s);

adapter.next();

}

assertTrue("User Tabelle should not be empty", !table.isEmpty());

}

}

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