原创：http://www.cnblogs.com/dqcer/p/7814034.html
导入ldap.jar包,笔者已对下面两个文件测试并通过。若有疑问欢迎留言
LDAPExport.java
package dsml_ldif; import java.io.FileOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException; import com.novell.ldap.LDAPConnection;
import com.novell.ldap.LDAPException;
import com.novell.ldap.LDAPMessage;
import com.novell.ldap.LDAPResponse;
import com.novell.ldap.LDAPSearchConstraints;
import com.novell.ldap.LDAPSearchQueue;
import com.novell.ldap.LDAPSearchResult;
import com.novell.ldap.LDAPSearchResultReference; /**
* <p>Title: 导出LDIF文件</p>
* <p>Description: 搜索LDAP目录，并将搜索的条目数写入到LDIF文件中</p>
* @author Administrator
* @date 2017年11月10日 上午8:49:47
*
*/
public class LDAPExport{ public static void main(String[] args) { String[] arg = {"192.168.0.254","cn=Manager,c=cn","123456","c=cn","objectClass=*","D:/dqcer.ldif"};
LDAPExport ldapExport = new LDAPExport();
ldapExport.export(arg);
}
public void export( String[] args ) {
//参数检查
if (args.length != 6) usage(); int ldapPort = LDAPConnection.DEFAULT_PORT;
int ldapVersion = LDAPConnection.LDAP_V3;
LDAPConnection lc = new LDAPConnection();
String ldapHost = args[0];
String loginDN = args[1];
String password = args[2];
String searchBase = args[3];
String searchFilter= args[4];
String fileName = args[5];
LDAPMessage msg; try { lc.connect( ldapHost, ldapPort ); // 连接服务
lc.bind(ldapVersion,loginDN,password.getBytes("UTF8") ); // 绑定服务
FileOutputStream fos = new FileOutputStream(fileName); LDIFWriter writer = new LDIFWriter(fos); //初始化 //异步搜索
LDAPSearchQueue queue = lc.search(searchBase, // 搜索的节点
LDAPConnection.SCOPE_SUB, // 搜索的类型，遍历、子节点、
searchFilter, // 过滤搜索的条件
null, // 搜索全部的属性
false, // 搜索属性和属性值
(LDAPSearchQueue)null, // 列队搜索
(LDAPSearchConstraints)null); while (( msg = queue.getResponse()) != null ) { // 返回消息，可供参考
if ( msg instanceof LDAPSearchResultReference ) {
String urls[] = ((LDAPSearchResultReference)msg).getReferrals();
System.out.println("Search result references:");
for ( int i = 0; i < urls.length; i++ )
System.out.println(urls[i]);
// 属于搜索的结果
}else if (msg instanceof LDAPSearchResult ) {
writer.writeMessage(msg); // 写入
// 属于搜索的请求
} else {
LDAPResponse response = (LDAPResponse)msg;
int status = response.getResultCode(); //返回状态码 // 返回成功 0
if ( status == LDAPException.SUCCESS ) {
System.out.println("Asynchronous search succeeded.");
// 异常参照
} else if ( status == LDAPException.REFERRAL ) {
String urls[]=((LDAPResponse)msg).getReferrals();
System.out.println("Referrals:");
for ( int i = 0; i < urls.length; i++ )
System.out.println(urls[i]);
// 异步搜索失败
} else {
throw new LDAPException( response.getErrorMessage(),status,response.getMatchedDN());
}
}
} // 关闭输出流
writer.finish();
fos.close();
System.out.println("生成ldif文件");
// 与服务器断开连接
lc.disconnect();
}catch( UnsupportedEncodingException e ) {
System.out.println( "Error: " + e.toString() ); } catch (IOException fe) {
System.out.println( "Error: " + fe.toString() ); } catch( LDAPException e ) {
System.out.println( "Error: " + e.toString() ); } } public void usage() { System.err.println("用法: java Ldap2Ldif <host name> <login dn>" + " <password> <search base> <search filter> < out file name>"); System.err.println("示例: 192.168.0.254" + " \"cn=Manager,c=cn\"" + " 123456 \"c=cn\"\n" + " \"objectclass=*\" out.ldif"); System.exit(1); } }
LDIFWriter.java
package dsml_ldif; import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.BufferedWriter;
import java.io.BufferedReader;
import java.io.StringReader;
import java.util.Iterator; import com.novell.ldap.*;
import com.novell.ldap.util.Base64;
import com.novell.ldap.util.LDAPWriter; /**
* <p>Title: 向LDIF文件中写入内容</p>
* <p>Description: 生成LDIF文件并写入内容</p>
* @author Administrator
* @date 2017年11月10日 上午10:51:04
*
*/
public class LDIFWriter implements LDAPWriter
{ private Boolean requestFile = null;
private BufferedWriter bufWriter;
private String version; /**
* 假定LDIF版本为1
* @param out
* @throws IOException
*/
public LDIFWriter(OutputStream out)throws IOException{
this( out, "1", null );
return;
} public LDIFWriter(OutputStream out, String version, boolean request) throws IOException{
this( out, version, new Boolean(request));
return;
} private LDIFWriter(OutputStream out, String version, Boolean request) throws IOException {
super(); if ( version != "1" )
throw new RuntimeException( "com.novell.ldap.ldif_dsml.LDIFWriter: LDIF version:found: " + version + ", Should be: 1"); this.version = version;
requestFile = request;
OutputStreamWriter osw = new OutputStreamWriter(out, "UTF-8");
bufWriter = new BufferedWriter( osw );
//writeComments("这个头部注释信息");
//writeVersionLine();
return;
} public void writeEntry(LDAPEntry entry) throws IOException {
writeEntry(entry, new LDAPControl[]{});
return;
} /**
* Write an LDAP record into LDIF file as LDAPContent data.
*
* <p>You are not allowed to mix request data and content data</p>
*
* @param entry LDAPEntry object
*
* @param controls Controls that were returned with this entry
*
* @throws IOException if an I/O error occurs.
*
* @see com.novell.ldap.LDAPEntry
*/
public void writeEntry(LDAPEntry entry, LDAPControl[] controls)
throws IOException
{
requestFile = Boolean.FALSE; // This is a content file
writeAddRequest(entry, controls);
bufWriter.newLine();
return;
} /**
* Write an LDAP record into LDIF file. A request or change operation may
* be objects of type LDAPAddRequest, LDAPDeleteRequest,
* LDAPModifyDNRequest, or LDAPModifyRequest.
* To write LDIF Content you must use an LDAPSearchResult object.
*
* <p>You are not allowed to mix request data and content data</p>
*
* @param request LDAPMessage object
*
* @throws IOException if an I/O error occurs.
*
* @see com.novell.ldap.LDAPSearchResults
* @see com.novell.ldap.LDAPAddRequest
* @see com.novell.ldap.LDAPDeleteRequest
* @see com.novell.ldap.LDAPModifyDNRequest
* @see com.novell.ldap.LDAPModifyRequest
*/
public void writeMessage(LDAPMessage request)
throws IOException
{
LDAPControl[] controls = request.getControls(); // check for valid type
switch( request.getType()) {
case LDAPMessage.SEARCH_RESPONSE:
if( requestFile == null) {
requestFile = Boolean.FALSE;
}
if( isRequest()) {
throw new RuntimeException("Attempting to write content " +
" in a request stream");
}
break;
case LDAPMessage.ADD_REQUEST:
case LDAPMessage.DEL_REQUEST:
case LDAPMessage.MODIFY_RDN_REQUEST:
case LDAPMessage.MODIFY_REQUEST:
if( requestFile == null) {
requestFile = Boolean.TRUE;
}
if( ! isRequest()) {
throw new RuntimeException("Attempting to write request " +
" in a content stream");
}
break;
default:
throw new RuntimeException("Unsupported request type: " +
request.toString());
} switch( request.getType()) {
case LDAPMessage.SEARCH_RESPONSE:
// LDAP Search Result Entry, write entry to outputStream
LDAPSearchResult sreq = (LDAPSearchResult)request;
writeAddRequest(sreq.getEntry(), controls);
break;
case LDAPMessage.ADD_REQUEST:
// LDAPAdd request, write entry to outputStream
LDAPAddRequest areq = (LDAPAddRequest)request;
writeAddRequest(areq.getEntry(), controls);
break;
case LDAPMessage.DEL_REQUEST:
// LDAPDelete request, write dn to outputStream
LDAPDeleteRequest dreq = (LDAPDeleteRequest)request;
writeDeleteRequest( dreq.getDN(), controls );
break;
case LDAPMessage.MODIFY_RDN_REQUEST:
// LDAPModDN request, write request data to outputStream
LDAPModifyDNRequest rreq = (LDAPModifyDNRequest)request;
// write to outputStream
writeModifyDNRequest( rreq.getDN(),
rreq.getNewRDN(),
rreq.getDeleteOldRDN(),
rreq.getParentDN(),
controls );
break;
case LDAPMessage.MODIFY_REQUEST:
// LDAPModify request, write modifications to outputStream
LDAPModifyRequest mreq = (LDAPModifyRequest)request;
// write to outputStream
writeModifyRequest( mreq.getDN(), mreq.getModifications(), controls );
break;
}
// write an empty line to separate records
bufWriter.newLine();
return;
} /**
* Write a comment line into the LDIF OutputStream.
*
* <p> an '#' char is added to the front of each line to indicate that
* the line is a comment line. If a line contains more than 78
* chars, it will be split into multiple lines each of which starts
* with '#' </p>
*
* @param line The comment lines to be written to the OutputStream
*
* @throws IOException if an I/O error occurs.
*/
public void writeComments (String line) throws IOException
{
BufferedReader in = new BufferedReader(new StringReader( line));
String rline;
while( (rline = in.readLine()) != null) {
bufWriter.write("# ", 0, 2);
bufWriter.write(rline, 0, rline.length());
bufWriter.newLine();
}
return;
} /**
* Writes an exception as a comment in LDIF.
* @param e Exception to be written.
*/
public void writeError(Exception e) throws IOException {
this.writeComments(e.toString());
} /**
* Gets the version of the LDIF data associated with the input stream
*
* @return the version number
*/
public String getVersion()
{
return version;
} /**
* Returns true if request data ist associated with the input stream,
* or false if content data.
*
* @return true if input stream contains request data.
*/
public boolean isRequest()
{
return requestFile.booleanValue();
} /**
* Check if the input byte array object is safe to make a String.
*
* <p>Check if the input byte array contains any un-printable value</p>
*
* @param bytes The byte array object to be checked.
*
* @return boolean object to incidate that the byte array
* object is safe or not
*/
public boolean isPrintable( byte[] bytes )
{
if (bytes == null) {
throw new RuntimeException(
"com.novell.ldap.ldif_dsml.LDIFWriter: null pointer");
}
else if (bytes.length > 0) {
for (int i=0; i<bytes.length; i++) {
if ( (bytes[i]&0x00ff) < 0x20 || (bytes[i]&0x00ff) > 0x7e ) {
return false;
}
}
}
return true;
} /**
* Write the version line of LDIF file into the OutputStream.
*
* <p>Two extra lines will be written to separate version line
* with the rest of lines in LDIF file</p>
*
* @throws IOException if an I/O error occurs.
*/
private void writeVersionLine () throws IOException
{
// LDIF file is currently using 'version 1'
String versionLine = new String("version: " + getVersion());
bufWriter.write( versionLine, 0, versionLine.length());
// write an empty line to separate the version line
// with the rest of the contents in LDIF file
bufWriter.newLine();
bufWriter.newLine();
return;
} /**
* Write a line into the OutputStream.
*
* <p>If the line contains more than 80 chars, it will be splited into
* multiple lines each of which starts with a space ( ASCII ' ') except
* the first one.</p>
*
* @param line The line to be written to the OutputStream
*
* @throws IOException if an I/O error occurs.
*/
private void writeLine(String line) throws IOException
{
int len = line.length();
if ( (line != null) && (len != 0)) {
if (len <= 76) {
// write short line
bufWriter.write(line, 0, len);
} else {
int pos = 0;
// break up long line
// write the first 80 chars to outputStream (no blank at front)
bufWriter.write(line, pos, 76);
pos += 76;
// remove the chars that already been written out
bufWriter.newLine(); while((len - pos) > 75) {
// write continuation line
bufWriter.write(" ", 0, 1);
bufWriter.write(line, pos, 75);
// remove the chars that already been written out
pos += 75;
// start a new line
bufWriter.newLine();
}
// write the remaining part of the lien out
bufWriter.write(" ", 0, 1);
bufWriter.write(line, pos, len - pos);
}
// write an empty line
bufWriter.newLine();
}
} /**
* Used to generate LDIF content record or LDIF change/add record lines.
*
* <p>Turn LDAPEntry object and LDAPControl[] object into LDIF record
* lines</p>
*
* @param entry LDAPREntry object
* @param ctrls LDAPControl object
*/
private void writeAddRequest( LDAPEntry entry, LDAPControl[] ctrls )
throws IOException
{ // write dn line(s)
writeDN(entry.getDN());
if (isRequest()) {
// add control line(s)
if ( ctrls != null ) {
writeControls( ctrls );
}
// add change type line
writeLine("changetype: add");
} // write attribute line(s)
LDAPAttributeSet attrSet = entry.getAttributeSet();
Iterator allAttrs = attrSet.iterator(); while(allAttrs.hasNext()) {
LDAPAttribute attr = (LDAPAttribute)allAttrs.next();
String attrName = attr.getName();
byte[][] values = attr.getByteValueArray(); if( values != null) {
for (int i=0; i<values.length; i++) {
writeAttribute(attrName, values[i]);
}
}
}
return;
} /**
* Used to generate LDIF change/modify record lines.
*
* <p>Turn entry DN, LDAPModification[] object, and LDAPControl[] object
* into LDIF LDIF record fields and then turn record fields into LDIF
* change/modify record lines</p>
*
* @param dn String object representing entry DN
* @param mods LDAPModification array object
* @param ctrls LDAPControl array object
*
* @see LDAPModification
* @see LDAPControl
*/
private void writeModifyRequest( String dn,
LDAPModification[] mods,
LDAPControl[] ctrls )
throws IOException
{ int i, modOp, len = mods.length;
String attrName;
byte[][] attrValue;
LDAPAttribute attr; // Write the dn field
writeDN(dn);
// write controls if there is any
if ( ctrls != null ) {
writeControls( ctrls );
} // save change type
writeLine("changetype: modify"); // save attribute names and values
for ( i = 0; i < len; i++ ) { modOp = mods[i].getOp();
attr = mods[i].getAttribute();
attrName = attr.getName();
attrValue = attr.getByteValueArray(); switch ( modOp ) {
case LDAPModification.ADD:
writeLine("add: "+ attrName);
break;
case LDAPModification.DELETE:
writeLine("delete: "+ attrName);
break;
case LDAPModification.REPLACE:
writeLine("replace: "+ attrName);
break;
default:
} // add attribute names and values to record fields
for(int j = 0;j < attrValue.length;j++)
writeAttribute(attrName, attrValue[j]); // add separators between different modify operations
writeLine("-");
}
return;
} /**
* Used to generate LDIF change/moddn record lines.
*
* <p>Turn entry DN and moddn information into LDIF change/modify
* record lines</p>
*
* @param dn String object representing entry DN
* @param newRDN The NewRDN for the ModDN request
* @param deleteOldRDN the deleteOldRDN flag
* @param newSuperior the new Superior DN for a move, or null if rename
* @param ctrls LDAPControl array object
*/
private void writeModifyDNRequest( String dn,
String newRDN,
boolean deleteOldRDN,
String newSuperior,
LDAPControl[] ctrls )
throws IOException
{
// Write the dn field
writeDN(dn); // write controls if there is any
if ( ctrls != null ) {
writeControls( ctrls );
} // save change type
writeLine("changetype: moddn"); // save new RDN
writeLine( Base64.isLDIFSafe(newRDN)?
"newrdn: " + newRDN:
"newrdn:: " + Base64.encode(newRDN)); // save deleteOldRDN
writeLine("deleteoldrdn:" + deleteOldRDN); // save newSuperior
if ( newSuperior != null) {
writeLine( Base64.isLDIFSafe(newSuperior)?
"newsuperior: " + newSuperior:
"newsuperior:: " + Base64.encode(newSuperior));
}
return;
} /**
* Used to generate LDIF change/delete record lines.
*
* <p>Turn entry DN, controls
* and change type into LDIF change/delete record fields and then turn
* record fields into LDIF moddn record lines</p>
*
* @param dn String object representing entry DN
* @param ctrls LDAPControl array object
*
* @see LDAPControl
*/
private void writeDeleteRequest( String dn,
LDAPControl[] ctrls )
throws IOException
{
// write dn line(s)
writeDN(dn);
// write control line(s)
if ( ctrls != null ) {
writeControls( ctrls );
}
// write change type
writeLine("changetype: delete");
return;
} /**
* Write the DN to the outputStream. If the DN characters are unsafe,
* the DN is encoded.
*
* @param dn the DN to write
*/
private void writeDN(String dn)
throws IOException
{
writeLine(Base64.isLDIFSafe(dn)? "dn: "+dn: "dn:: "+ Base64.encode(dn));
return;
} /**
* Write control line(s).
*
* @param ctrls LDAPControl array object
*/
private void writeControls(LDAPControl[] ctrls)
throws IOException
{
for ( int i = 0; i < ctrls.length; i++ ) {
// get control value
byte[] cVal = ctrls[i].getValue();
// write control value
writeLine( (cVal != null && cVal.length > 0)?
"control: " + ctrls[i].getID() + " " + ctrls[i].isCritical()
+ ":: " + Base64.encode(cVal):
"control: " + ctrls[i].getID() + " " + ctrls[i].isCritical() );
}
return;
} /**
* Write attribute name and value into outputStream.
*
* <p>Check if attrVal starts with NUL, LF, CR, ' ', ':', or '<'
* or contains any NUL, LF, or CR, and then write it out</p>
*/
private void writeAttribute(String attrName, String attrVal)
throws IOException
{
if (attrVal != null) {
writeLine( Base64.isLDIFSafe(attrVal)?
attrName + ": " + attrVal :
attrName + ":: " + Base64.encode(attrVal) );
}
return;
} /**
* Write attribute name and value into outputStream.
*
* <p>Check if attribute value contains NON-SAFE-INIT-CHAR or
* NON-SAFE-CHAR. if it does, it needs to be base64 encoded and then
* write it out</p>
*/
private void writeAttribute(String attrName, byte[] attrVal)
throws IOException
{
if (attrVal != null) {
writeLine( (Base64.isLDIFSafe(attrVal) && isPrintable(attrVal))?
attrName + ": " + new String(attrVal, "UTF-8"):
attrName + ":: " + Base64.encode(attrVal) );
}
return;
} /**
* Write all remaining data to the output stream
*/
public void finish() throws IOException
{
bufWriter.flush();
return;
}
}