SpringBoot集成LDAP同步数据

1、pom引入依赖

<dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-data-ldap</artifactId>
</dependency>

2、创建一个资源类LdapRepository

首先需要创建一个实体

@Data
public class LdapServer {

    /**
     * ldap服务器
     */
    @NotBlank
    private String url;

    /**
     * 端口
     */
    @NotBlank
    private Integer port;

    /**
     * 基础域
     */
    @NotBlank
    private String baseDN;

    /**
     * 用户名
     */
    @NotBlank
    private String userName;

    /**
     * 密码
     */
    @NotBlank
    private String password;

}

建立连接：

　　private LdapTemplate ldapTemplate;

/**
     * 使用前必须先连接
     *
     * @param server
     */
    public LdapRepository connect(LdapServer server) {
        if(server.getUrl().contains("ldaps")){
            SSLLdapContextSource contextSource = new SSLLdapContextSource();
            contextSource.setUrl(server.getUrl() + ":" + server.getPort());
            contextSource.setUserDn(server.getUserName());
            contextSource.setPassword(server.getPassword());
            contextSource.setPooled(false);
            contextSource.setBase(server.getBaseDN());
            contextSource.afterPropertiesSet(); 
            contextSource.setReferral("follow");
            // 设置连接超时时间 3s
            Map<String, Object> envProperties = new HashMap<>();
            envProperties.put("com.sun.jndi.ldap.connect.timeout", "3000");
            envProperties.put("com.sun.jndi.ldap.read.timeout", "3000");
            contextSource.setBaseEnvironmentProperties(envProperties);
            ldapTemplate = new LdapTemplate(contextSource);
        }else {
            LdapContextSource contextSource = new LdapContextSource();
            contextSource.setUrl(server.getUrl() + ":" + server.getPort());
            contextSource.setUserDn(server.getUserName());
            contextSource.setPassword(server.getPassword());
            contextSource.setPooled(false);
            contextSource.setBase(server.getBaseDN());
            contextSource.afterPropertiesSet(); // important
            contextSource.setReferral("follow");
            // 设置连接超时时间 3s
            Map<String,Object> envProperties = new HashMap<>();
            envProperties.put("com.sun.jndi.ldap.connect.timeout","3000");
            envProperties.put("com.sun.jndi.ldap.read.timeout","3000");
            contextSource.setBaseEnvironmentProperties(envProperties);
            ldapTemplate = new LdapTemplate(contextSource);
        }
        ldapTemplate.setIgnorePartialResultException(true);
        return this;
    }

测试认证连接:

    public void authenticate(String username, String password) {
        ldapTemplate.getContextSource().getContext(username, password);
    }

一次查询所有人员：

　　/**
     * 查询所有人员
     */
    public List findAll(LdapQuery ldapQuery) {
        List<BasicAttributes> basicAttributesList = (List) ldapTemplate.search(ldapQuery, new AttributesMapper<Object>() {
            @Override
            public Object mapFromAttributes(Attributes attributes) throws NamingException {
                BasicAttributes basicAttributes = (BasicAttributes) attributes;
        return basicAttributes;
            }
        });
        return basicAttributesList;
    }

如果数据量太大，需要使用分页查询：

public List<BasicAttributes> findAllPageNew(LdapQuery ldapQuery) {
        String searchFilter = "(&(objectClass=person)(!(objectclass=computer)))";
        List<BasicAttributes> attributesList = new ArrayList<>();
        ldapTemplate.setIgnorePartialResultException(true);
        SearchControls searchControls = new SearchControls();
        /**
         * 0:OBJECT_SCOPE,搜索指定的命名对象。
         * 1:ONELEVEL_SCOPE,只搜索指定命名对象的一个级别，这是缺省值。
         * 2:SUBTREE_SCOPE,搜索以指定命名对象为根结点的整棵树
         */
        searchControls.setSearchScope(SearchControls.SUBTREE_SCOPE);
        // 每次查询条数：默认1000条
        PagedResultsDirContextProcessor processor = new PagedResultsDirContextProcessor(1000);
        //返回的参数
        AttributesMapper CN_ATTRIBUTES_MAPPER = attributes -> {
            BasicAttributes basicAttributes = (BasicAttributes) attributes;
            return basicAttributes;
        };
        do {
            List<BasicAttributes> searchList = (List) ldapTemplate.search("",
                    searchFilter,
                    searchControls,
                    CN_ATTRIBUTES_MAPPER,
                    processor);
            attributesList.addAll(searchList);
        } while(processor.hasMore());

        return attributesList;
    }