프로젝트 시나리오:
팁: 프로젝트 관련 배경에 대한 간략한 설명은 다음과 같습니다.
특정 프로젝트의 제출 버튼은 사용하기 쉽지 않습니다
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
로그인 후 복사
完整的项目报错信息：
org.springframework.data.redis.RedisConnectionFailureException: Redis에 연결할 수 없습니다. 중첩된 예외는 io.lettuce.core.RedisConnectionException입니다. org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getNativeConnection(LettuceConnectionFactory.java:1092에서 127.0.0.1/:6379
에 연결할 수 없습니다. )
at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getConnection(LettuceConnectionFactory.java:1065)
at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getSharedConnection(LettuceConnectionFactory.java:865 )
org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getConnection(LettuceConnectionFactory.java:340)
org.springframework.data.redis.core.RedisConnectionUtils.doGetConnection(RedisConnectionUtils.java:132)
org에서 .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)
org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:184)
org.springframework.data.redis.core.AbstractOperations.execute에서 (AbstractOperations.java:95)
org.springframework.data.redis.core.DefaultValueOperations.get(DefaultValueOperations.java:53)
com.wuyue.travel.service.HotelService.add(HotelService.java:60)
com.wuyue.travel.service.HotelService$$FastClassBySpringCGLIB$$577547fe.invoke(<생성>)
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
org.springframework에 있습니다. aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.transaction.interceptor.Transaction AspectSupport.invokeWithinTransaction( TransactionAspectSupport.java:294)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org. springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
com.wuyue.travel.service.HotelService$$EnhancerBySpringCGLIB$$af4f4c1f.add()
com.wuyue.travel에서 .controller.admin.HotelController.add(HotelController.java:65)
java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
java.base/java.lang.reflect.Method에서 .invoke(Method.java:577)
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java) :138)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMa pingHandlerAdapter .java : 895) org.springframework.web.servlet.method.annotation.requestmappingHandleInternal (requestMappingHandlerAdapter.java:800)
at org.springframework.web.shervc.bithodtor allwhervorthort Ermethodadapter .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)
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)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
org.apache.tomcat.websocket.server에서 .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 )
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
조직에서 .springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security .web.access.exceptiontranslationfilter.dofilter (ExceptionTranslationFilter.java:119)
org.springframework.security.web.filterchainproxy $ virtualfilterchain.dofilter (Filterchainproxy.java:334) atpret 필터 .doFilter(SessionManagementFilter.java:137)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter( AnonymousAuthenticationFilter.java :111)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java :170)
조직에서 .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$Vi rtualFilterChain .doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:74)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:10 7 )
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)에서
org.springframework에서 .security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
at org.springframework. 웹 .filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.FilterChainProxy.doFil terInternal(FilterChainProxy .java:215)
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(ApplicationFil 터체인 .java:166)
org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
org.apache에서 .catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
org.springframework.web.filter.OncePerRequestFilter에서 .doFilter(OncePerRequestFilter.java:107)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
org.apache.catalina.core.ApplicationFilterChain에서 .internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
org.apache.catalina.core.ApplicationFilterChain에서 .doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
org.apache.catalina.valves.ErrorReportValve에서 .invoke(ErrorReportValve.java:92)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
org.apache.coyote.AbstractProtocol$ConnectionHandler.process에서 (AbstractProtocol.java:834)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java :49)
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.base/java.lang.Thread.run(Thread.java:833)
원인: io.lettuce .core.RedisConnectionException: io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:78)
에서 127.0.0.1/:6379
io.lettuce.core.RedisConnectionException.create(RedisConnectionException에 연결할 수 없습니다. .java:56)
io.lettuce.core.AbstractRedisClient.getConnection(AbstractRedisClient.java:234)
io.lettuce.core.RedisClient.connect(RedisClient.java:204)
org.springframework.data.redis에서 .connection.lettuce.StandaloneConnectionProvider.lambda$getConnection$1(StandaloneConnectionProvider.java:113)
java.base/java.util.Optional.orElseGet(Optional.java:364)
org.springframework.data.redis.connection에서. lettuce.StandaloneConnectionProvider.getConnection(StandaloneConnectionProvider.java:113)
at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getNativeConnection(LettuceConnectionFactory.java:1085)
... 103개 더보기
원인: io. netty.channel.AbstractChannel$AnnotatedConnectException: 연결 거부됨: 추가 정보 없음: /127.0.0.1:6379
java.base/sun.nio.ch.Net.pollConnect(Native Method)
java.base/sun.nio에서. ch.Net.pollConnectNow(Net.java:672)
java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:946)
io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect( NioSocketChannel.java:327)
at io.netty.channel.nio.AbstractNioChannel$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$5.run(SingleThreadEventExecutor.java:897)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
... 1 more
Caused by: java.net.ConnectException: Connection refused: no further information
... 12 more
问题描述：
提示：这里描述项目中遇到的问题：
在某个项目中添加按钮一直显示执行出错
一开始想的是代码问题，于是翻看各层代码：
首先看页面：
<script>
layui.use(['form', 'upload', 'laydate'] ,function(){
var form = layui.form
,$ = 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 >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>로그인 후 복사
Controller层代码
/**
* 增加
* @param hotel
*/
@ResponseBody
@RequestMapping(method=RequestMethod.POST)
public Result add(@RequestBody Hotel hotel){
hotelService.add(hotel);
return new Result(true,StatusCode.OK,"增加成功");
}로그인 후 복사
Dao层数据访问接口
public interface HotelDao extends JpaRepository<Hotel,String>,JpaSpecificationExecutor<Hotel>{
List<Hotel> findByAddrLike(String addr);
}로그인 후 복사
Service层代码
/**
* 增加
* @param hotel
*/
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);
}로그인 후 복사
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
原因分析：
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????
解决方案：
提示：缺少Redis环境
最后运行成功！
在管理员后台列表中也可以看到数据
위 내용은 Redis에 연결할 수 없습니다. Redis에 연결할 수 없는 문제를 해결하는 방법의 상세 내용입니다. 자세한 내용은 PHP 중국어 웹사이트의 기타 관련 기사를 참조하세요!
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