背景

亲测可用,之前搜索了很多博客，啥样的都有，就是不介绍报错以及配置用处，根本不懂照抄那些配置是干啥的，稀里糊涂的按照博客搭完也跑不起来，因此记录这个。

项目背景：公司项目当前采用http协议+shiro+mysql的登录认证方式，而现在想支持ldap协议认证登录然后能够访问自己公司的项目网站。

举例说明：假设我们公司有自己的门户网站，现在我们收购了一家公司，他们数据库采用ldap存储用户数据，那么为了他们账户能登陆我们公司项目所以需要集成，而不是再把他们的账户重新在mysql再创建一遍，万一人家有1W个账户呢，不累死了且也不现实啊。

需要安装openldap+kerberos，且ldap和kerberos安装在同一台服务器上，当前版本如下：

• centos 7.9
• openldap 2.4.44
• phpldapadmin 1.2.5
• 服务器IP：10.110.38.162
• Kerberos ：Kerberos 5 release 1.15.1

另外介绍下我的Spring各个版本：

• Spring Security：4.2.3.RELEASE
• Spring Version：4.3.9.RELEASE
• SpringBoot Version：1.4.7.RELEASE

注意点1：我之所以选这么旧的版本，是因为我最后要在自己项目集成，我们项目就是上面版本附近的，所以不能选太高版本，这点请注意各版本之间的兼容性问题。
详情可看这篇博客介绍兼容版本：https://zhuanlan.zhihu.com/p/652895555

注意点2：如果里面的某些配置不知道在哪或者不知道干啥的，可以看我的前面的博客，详细介绍了安装配置等，可以大致了解参数。

报错

完整错误

org.springframework.ldap.InvalidNameException: [LDAP: error code 34 - invalid DN]; nested exception is javax.naming.InvalidNameException: [LDAP: error code 34 - invalid DN]

    at org.springframework.ldap.support.LdapUtils.convertLdapException(LdapUtils.java:136)
    at org.springframework.ldap.core.support.AbstractContextSource.createContext(AbstractContextSource.java:363)
    at org.springframework.ldap.core.support.AbstractContextSource.doGetContext(AbstractContextSource.java:147)
    at org.springframework.ldap.core.support.AbstractContextSource.getReadOnlyContext(AbstractContextSource.java:166)
    at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:361)
    at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:332)
    at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:608)
    at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:598)
    at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:486)
    at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:502)
    at org.springframework.ldap.core.LdapTemplate.search(LdapTemplate.java:518)
    at com.ldap.LdapTest.listUsers(LdapTest.java:31)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)
    at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
    at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
    at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
    at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
    at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)
    at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)
Caused by: javax.naming.InvalidNameException: [LDAP: error code 34 - invalid DN]
    at com.sun.jndi.ldap.LdapCtx.processReturnCode(LdapCtx.java:3095)
    at com.sun.jndi.ldap.LdapCtx.processReturnCode(LdapCtx.java:2886)
    at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2800)
    at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:319)
    at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:192)
    at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:210)
    at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:153)
    at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:83)
    at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:684)
    at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:313)
    at javax.naming.InitialContext.init(InitialContext.java:244)
    at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:154)
    at org.springframework.ldap.core.support.LdapContextSource.getDirContextInstance(LdapContextSource.java:42)
    at org.springframework.ldap.core.support.AbstractContextSource.createContext(AbstractContextSource.java:351)
    ... 41 more

代码长这样：

application.properties

spring.ldap.urls=ldap://10.110.38.162:389
spring.ldap.username=admin
spring.ldap.password=123456
spring.ldap.base=dc=node3,dc=com

LdapTest

@Test
public void listUsers() throws NoSuchAlgorithmException {
   
    AndFilter filter = new AndFilter();
    filter.and(new EqualsFilter("objectClass", "inetOrgPerson"));

    List<LdapUser> users = ldapTemplate.search("ou=People,dc=hdp", filter.encode(), new LdapUserAttributeMapper());
    for (LdapUser user: users ) {
   
        System.out.println("user: " + user);
        System.out.println("userPassword:" + user.getUserPassword());
        System.out.println(verifySHA(user.getUserPassword(), "123456"));
    }
}

错误原因：配置文件中spring.ldap.username这里错了，因为我创建了admin管理员账户，但是这里我不知道是输入admin 啊还是输入完整dn

解决方案：此处应该输入完整dn：spring.ldap.username=cn=admin,dc=node3,dc=com

本人其他相关文章链接

1.Centos7.9安装openldap
2.Centos7.9安装kerberos
3.Openldap集成Kerberos
4.Centos7.9安装phpldapadmin
5.java连接ldap实现用户查询功能
6.java连接kerberos用户认证
7.javax.security.auth.login.LoginException: Unable to obtain password from user
8.javax.security.auth.login.LoginException: null (68)
9.javax.security.auth.login.LoginException: Message stream modified (41)
10.javax.security.auth.login.LoginException: Checksum failed
11.javax.security.auth.login.LoginException: No CallbackHandler available to garner authentication info
12.javax.security.auth.login.LoginException: Cannot locate KDC
13.javax.security.auth.login.LoginException: Receive timed out
14.java: 无法访问org.springframework.context.ConfigurableApplicationContext
15.LDAP: error code 34 - invalid DN
16.LDAP: error code 32 - No Such Object
17.java: 无法访问org.springframework.ldap.core.LdapTemplate