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Unable？to？connect？to？Redis无法连接到Redis解决的全过程（redis unable to connect）怎么可以错过

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目录项目场景：完整的项目报错信息：问题描述：原因分析：解决方案：总结 

提示：这里简述项目相关背景：

在某个项目中的提交按钮不好用

org.springframework.data.redis.RedisConnectionFailureException:
Unable to connect to Redis;
nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1/<unresolved>:6379

org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1/:6379

    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getNativeConnection(LettuceConnectionFactory.java:1092)

    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getConnection(LettuceConnectionFactory.java:1065)

    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getSharedConnection(LettuceConnectionFactory.java:865)

    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getConnection(LettuceConnectionFactory.java:340)

    at org.springframework.data.redis.core.RedisConnectionUtils.doGetConnection(RedisConnectionUtils.java:132)

    at org.springframework.data.redis.core.RedisConnectionUtils.getConnection(RedisConnectionUtils.java:95)

    at org.springframework.data.redis.core.RedisConnectionUtils.getConnection(RedisConnectionUtils.java:82)

    at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:211)

    at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:184)

    at org.springframework.data.redis.core.AbstractOperations.execute(AbstractOperations.java:95)

    at org.springframework.data.redis.core.DefaultValueOperations.get(DefaultValueOperations.java:53)

    at com.wuyue.travel.service.HotelService.add(HotelService.java:60)

    at com.wuyue.travel.service.HotelService$$FastClassBySpringCGLIB$$577547fe.invoke()

    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)

    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749)

    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)

    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)

    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)

    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)

    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)

    at com.wuyue.travel.service.HotelService$$EnhancerBySpringCGLIB$$af4f4c1f.add()

    at com.wuyue.travel.controller.admin.HotelController.add(HotelController.java:65)

    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)

    at java.base/java.lang.reflect.Method.invoke(Method.java:577)

    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189)

    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)

    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)

    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)

    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800)

    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)

    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)

    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)

    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)

    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908)

    at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)

    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)

    at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)

    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)

    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)

    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)

    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)

    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)

    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)

    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)

    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)

    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:74)

    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)

    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)

    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)

    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)

    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)

    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)

    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)

    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)

    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)

    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)

    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)

    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)

    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)

    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)

    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)

    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)

    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)

    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)

    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)

    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)

    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834)

    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)

    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)

    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)

    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)

    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

    at java.base/java.lang.Thread.run(Thread.java:833)

Caused by: io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1/:6379

    at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:78)

    at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:56)

    at io.lettuce.core.AbstractRedisClient.getConnection(AbstractRedisClient.java:234)

    at io.lettuce.core.RedisClient.connect(RedisClient.java:204)

    at org.springframework.data.redis.connection.lettuce.StandaloneConnectionProvider.lambda$getConnection$1(StandaloneConnectionProvider.java:113)

    at java.base/java.util.Optional.orElseGet(Optional.java:364)

    at org.springframework.data.redis.connection.lettuce.StandaloneConnectionProvider.getConnection(StandaloneConnectionProvider.java:113)

    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getNativeConnection(LettuceConnectionFactory.java:1085)

    … 103 more

Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: /127.0.0.1:6379

    at java.base/sun.nio.ch.Net.pollConnect(Native Method)

    at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:672)

    at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:946)

    at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327)

    at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:340)

    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:636)

    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:583)

    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:500)

    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:462)

    at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:897)

    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)

    … 1 more

Caused by: java.net.ConnectException: Connection refused: no further information

    … 12 more

提示：这里描述项目中遇到的问题：

在某个项目中添加按钮一直显示执行出错

一开始想的是代码问题，于是翻看各层代码：

首先看页面：

<script>
layui.use([‘form’, ‘upload’, ‘laydate’] ,function(){

var form=layui.form
,$=layui.jquery
,layer=layui.layer
,upload=layui.upload
,laydate=layui.laydate;

//日期
laydate.render({
elem: ‘#date’
});

//普通图片上传
var uploadInst=upload.render({
elem: ‘#test1’
,url: ‘/uploadFile’
,before: function(obj){
//预读本地文件示例，不支持ie8
obj.preview(function(index, file, result){
$(‘#demo1’).attr(‘src’, result); //图片链接（base64）
});
}
,done: function(res){
//如果上传失败
if(res.code > 0){
return layer.msg(‘上传失败’);
}
//上传成功
return layer.msg(‘上传成功’);
}
,error: function(){
//演示失败状态，并实现重传
var demoText=$(‘#demoText’);
demoText.html(‘<span style=”color: #FF5722;”>上传失败</span> <a class=”layui-btn layui-btn-xs demo-reload”>重试</a>’);
demoText.find(‘.demo-reload’).on(‘click’, function(){
uploadInst.upload();
});
}
});

//监听提交
form.on(‘submit(setmyinfo)’, function(obj){

$.ajax({
type: “POST”,
url: “/hotel”,
data: JSON.stringify(obj.field),
dataType: “json”,
contentType: “application/json;charset=utf-8”,
success: function(result) {
if(result.code==0) {

//登入成功的提示
layer.msg(
result.message,{
icon: 1
});
} else {
layer.msg(result.message, {
icon: 5
});
}
}
});

});

});
</script>

Controller层代码

@ResponseBody
@RequestMapping(method=RequestMethod.POST)
public Result add(@RequestBody Hotel hotel){
hotelService.add(hotel);
return new Result(true,StatusCode.OK,”增加成功”);
}

Dao层数据访问接口

public interface HotelDao extends JpaRepository<Hotel,String>,JpaSpecificationExecutor<Hotel>{

List<Hotel> findByAddrLike(String addr);

}

Service层代码

public void add(Hotel hotel) {
hotel.setId( idWorker.nextId()+”” );
//取到缓存中的文件url
String fileurl=(String) redisTemplate.opsForValue().get(“fileurl”);

hotel.setImg(“https://travel031.oss-cn-qingdao.aliyuncs.com/”+fileurl);
hotelDao.save(hotel);
}

其实这一路看过来没发现啥问题，基本上是谁也不会觉得代码有问题

提示：Unable to connect to Redis

这意思是说无法连接到Redis

当时是看完代码觉得没问题又去F12检查页面，当然我还是没看出啥问题

提示：缺少Redis环境

最后有幸得到一位大佬帮助，他告诉我是缺少环境

最后运行成功！

在管理员后台列表中也可以看到数据

到此这篇关于Unable to connect to Redis无法连接到Redis解决的文章就介绍到这了,更多相关无法连接到Redis内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！

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