java 网络编程抛出Socket is closed异常大虾帮帮忙

Posted 2023-04-08

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了java 网络编程抛出Socket is closed异常大虾帮帮忙相关的知识，希望对你有一定的参考价值。

代码如下：
Server
import java.net.*;
import java.io.*;

public class Client
public static void main(String args[])
try
Socket sock = new Socket("127.0.0.1", 6666);// 创建Socket对象,地址与端口要对应服务器的值
//得到服务器端发送过来的字节输入流信息，并进行包装
BufferedReader in = new BufferedReader(new InputStreamReader(sock
.getInputStream()));
String s = in.readLine();
System.out.println(s);
PrintWriter out = new PrintWriter(sock.getOutputStream());
out.println("客户端已收到服务器信息");
//in.close();
catch (IOException e)
System.out.println("error!");

Client
import java.net.*;
import java.io.*;

public class Client
public static void main(String args[])
try
Socket sock = new Socket("127.0.0.1", 6666);// 创建Socket对象,地址与端口要对应服务器的值
//得到服务器端发送过来的字节输入流信息，并进行包装
BufferedReader in = new BufferedReader(new InputStreamReader(sock
.getInputStream()));
String s = in.readLine();
System.out.println(s);
PrintWriter out = new PrintWriter(sock.getOutputStream());
out.println("客户端已收到服务器信息");
//in.close();
catch (IOException e)
System.out.println("error!");

服务器程序运行结果如下：
服务器已启动......
已接受连接请求1
java.net.SocketException:Socket is closed

之后也不再接受客户端的连接~~~~为什么为这样D，大虾帮帮忙~~~~
java

参考技术A 你的客户端socket断掉了,服务端当然抛异常!
在服务端中accept方法是堵塞的..在链接断开时要重新accept.而不能让程序结束! 参考技术B 我趋，你代码粘的挺有创意。参考技术C 额，你给的都是client端。本回答被提问者采纳参考技术D 超时有没可能

记住我不工作.. 抛出 java.lang.IllegalStateException: UserDetailsService is required

【中文标题】记住我不工作.. 抛出 java.lang.IllegalStateException: UserDetailsService is required【英文标题】：Remember-me not working .. throws java.lang.IllegalStateException: UserDetailsService is required 【发布时间】：2018-03-07 08:47:31 【问题描述】：

按照以下教程的指导方针，我实现了记住我的功能

http://www.baeldung.com/spring-security-remember-me

但是当我运行程序时它会抛出 java.lang.IllegalStateException: UserDetailsService is required. 而 UserDetails 服务是正确实现的。下面是userDetailsWebService的配置方法和注册。

@Override
protected void configure(HttpSecurity http) throws Exception 

    // @formatter:off
     http
     .authorizeRequests()
         .antMatchers("/", "/home","/login","/adduser","/verifyemail", 
                 "/baduser", "/resetmypassword","/resetpasswordlink").permitAll()
         .antMatchers("/tasks").hasAnyAuthority("APP_USER","APP_TENURED_USER","ADMIN")
         .antMatchers("/resetpasswordpage","/resetpassword").hasAuthority(TaskFirstConstants.RESET_PASSWORD_ACCESS)
         .antMatchers("/resetpasswordpage","/resetpassword").hasRole("")
         .anyRequest().authenticated()
         .and().rememberMe().key("uniqueAndSecret")     //  -- here
         .and()
     .formLogin()
         .loginProcessingUrl("/perform_login")
         .loginPage("/login")
         .defaultSuccessUrl("/tasks")
         .permitAll()
         .and()
     .logout()
         .permitAll()
         .logoutSuccessUrl("/login");

    // @formatter:on


@Bean
@Autowired
public DaoAuthenticationProvider authenticationProvider(PasswordEncoder passwordEncoder, UserDetailsService userDetailsService )
    DaoAuthenticationProvider daoAuthenticationProvider = new DaoAuthenticationProvider();
    daoAuthenticationProvider.setPasswordEncoder(passwordEncoder);
    daoAuthenticationProvider.setUserDetailsService(userDetailsService);
    return daoAuthenticationProvider;

完整的错误日志如下..

java.lang.IllegalStateException: UserDetailsService is required.
    at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter$UserDetailsServiceDelegator.loadUserByUsername(WebSe
curityConfigurerAdapter.java:455) ~[spring-security-config-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.authentication.rememberme.TokenBasedRememberMeServices.processAutoLoginCookie(TokenBasedRememberMeServices.java:1
23) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.authentication.rememberme.AbstractRememberMeServices.autoLogin(AbstractRememberMeServices.java:130) ~[spring-secu
rity-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:98) ~[sprin
g-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4
.2.3.RELEASE]
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) ~[s
pring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4
.2.3.RELEASE]
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-4.2.3.RELEAS
E.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4
.2.3.RELEASE]
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) ~
[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4
.2.3.RELEASE]
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.
RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4
.2.3.RELEASE]
    at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:100) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4
.2.3.RELEASE]
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64) ~[spring-security-web-4.2.3.RELEASE.jar:4.
2.3.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4
.2.3.RELEASE]
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) ~[spring-security-we
b-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4
.2.3.RELEASE]
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
 ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) ~[spring-security-web-4.2.3.RELEASE.jar:4
.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEAS
E]
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) ~[spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE
]
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105) ~[spring-web-4.3.10.RELEASE.jar:4.3.10
.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELE
ASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.R
ELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106) ~[spring-boot-actuator-1.5.6.RELEASE.jar:1.5
.6.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.10.RELEASE.jar:4.3.10.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) [tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) [tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455) [tomcat-embed-core-8.5.16.jar:8.5.16]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.16.jar:8.5.16]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_144]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_144]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.16.jar:8.5.16]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144]

查看完整代码，请查看https://github.com/vikashsaini01/TaskFirst/

【问题讨论】：

【参考方案1】：

好吧，在我注册UserDetailsService 后，它就开始起作用了。使用下面的代码..

.and()
  .rememberMe()
    .key("uniqueAndSecret")
        .userDetailsService(userDetailsService);

正如https://docs.spring.io/spring-security/site/docs/current/reference/htmlsingle/ 中提到的那样

不要忘记将您的RememberMeServices 实现添加到您的UsernamePasswordAuthenticationFilter.setRememberMeServices() 属性中，将RememberMeAuthenticationProvider 包含在您的AuthenticationManager.setProviders() 列表中，并将RememberMeAuthenticationFilter 添加到您的FilterChainProxy 中（通常紧跟在您的@987654330 之后@)。

但我仍然不确定为什么它没有从 DaoAuthenticationProvider... 中选择默认值吗？？

【讨论】：

非常感谢！我也错过了单独的 userService 注册，但是在这个修复之后，它可以工作了。

以上是关于java 网络编程抛出Socket is closed异常大虾帮帮忙的主要内容，如果未能解决你的问题，请参考以下文章

java---Socket编程出现的异常种类

当 socket.close() 抛出 Java 时我能做啥？

网络编程之socket异常总结

Python:TCP编程基础

记住我不工作.. 抛出 java.lang.IllegalStateException: UserDetailsService is required

Socket编程时recv函数错误：Transport endpoint is not connected的解决

java 网络编程 抛出Socket is closed异常 大虾帮帮忙

记住我不工作.. 抛出 java.lang.IllegalStateException: UserDetailsS​​ervice is required

java 网络编程抛出Socket is closed异常大虾帮帮忙

记住我不工作.. 抛出 java.lang.IllegalStateException: UserDetailsService is required