java 连接ldaps

证书怎么生成的可以参考文章：https://blog.csdn.net/woloqun/article/details/90212376

将ldaps服务器的证书复制到client端，并将证书导入到本地环境

keytool -import -file apacheds.cer -alias apacheds -keystore /Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/jre/lib/security/cacerts

常用操作

keytool -delete -alias apacheds -keystore /Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/jre/lib/security/cacerts

keytool -list -keystore /Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home/jre/lib/security/cacerts

测试代码

package util;

import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
import javax.naming.*;
import javax.naming.directory.*;
import javax.naming.ldap.Control;
import javax.naming.ldap.InitialLdapContext;
import javax.naming.ldap.LdapContext;


public class LDAPAuthentication{
    private final String URL = "ldaps://hhz.apacheds:10636";
    private final String BASEDN = "dc=hhz,dc=hadoop";  // 根据自己情况进行修改
    private final String FACTORY = "com.sun.jndi.ldap.LdapCtxFactory";
    private LdapContext ctx = null;
    private final Control[] connCtls = null;
  
    private void LDAP_connect() {
        Hashtable<String, String> env = new Hashtable<String, String>();
        env.put(Context.INITIAL_CONTEXT_FACTORY, FACTORY);
        env.put(Context.PROVIDER_URL, URL + BASEDN);
        env.put(Context.SECURITY_AUTHENTICATION, "simple");
        String root = "uid=admin,ou=system";  // 根，根据自己情况修改
        env.put(Context.SECURITY_PRINCIPAL, root);   // 管理员
        env.put(Context.SECURITY_CREDENTIALS, "secret");  // 管理员密码
         
        try {
            ctx = new InitialLdapContext(env, connCtls);
            System.out.println( "认证成功" ); 
            System.out.println(ctx);
             
        } catch (javax.naming.AuthenticationException e) {
            System.out.println("认证失败：");
            e.printStackTrace();
        } catch (Exception e) {
            System.out.println("认证出错：");
            e.printStackTrace();
        }
         
        if (ctx != null) {
            try {
                ctx.close();
            }
            catch (NamingException e) {
                e.printStackTrace();
            }
 
        }
    }
    public static void main(String[] args) {
        readLdap();
    }

    public static void readLdap(){

        Hashtable<String, String> env = new Hashtable<String, String>();
        DirContext ctx = null;
        env.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
        env.put(Context.PROVIDER_URL, "ldaps://hhz.apacheds:10636");
        env.put(Context.SECURITY_AUTHENTICATION, "simple");
        env.put(Context.SECURITY_PRINCIPAL, "uid=admin,ou=system");
        env.put(Context.SECURITY_CREDENTIALS, "secret");
        try {
            ctx = new InitialDirContext(env);
        } catch (NamingException e) {
            e.printStackTrace();
            return;
        }

        Map<String,String> map = new HashMap<String, String>();
        try {
            if(ctx != null){
                NamingEnumeration<NameClassPair> list = ctx.list("ou=people,dc=hhz,dc=hadoop");
                while(list.hasMore()){
                    NameClassPair ncp = list.next();
                    String cn = ncp.getName();
                    if(cn.indexOf("=") != -1){
                        int index = cn.indexOf("=");
                        cn = cn.substring(index + 1,cn.length());
                        map.put(cn, ncp.getNameInNamespace());
                    }
                }
            }
        } catch (NamingException e) {
            e.printStackTrace();
            return;
        }

        try {
            if(ctx != null)
                ctx.close();
        } catch (NamingException e) {
            e.printStackTrace();
        }

        Iterator<Map.Entry<String,String>> it = map.entrySet().iterator();
        while(it.hasNext()){
            Map.Entry<String,String> entry = it.next();
            System.out.println("Key:"+entry.getKey());
            System.out.println("Value:"+entry.getValue());
        }
    }


}

 输出：
 

Key:leo
Value:uid=leo,ou=people,dc=hhz,dc=hadoop