我的cat的访问不是local host:8080/cat,我输入了虚拟机的地址才能访问cat即192.168.157.134:8080/cat/r
hello cat在我设置的9000也能正常访问
<?xml version="1.0" encoding="UTF-8"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!-- Note: A "Server" is not itself a "Container", so you may not
define subcomponents such as "Valves" at this level.
Documentation at /docs/config/server.html
-->
<Server port="8005" shutdown="SHUTDOWN">
<Listener className="org.apache.catalina.startup.VersionLoggerListener" />
<!-- Security listener. Documentation at /docs/config/listeners.html
<Listener className="org.apache.catalina.security.SecurityListener" />
-->
<!--APR library loader. Documentation at /docs/apr.html -->
<Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
<!-- Prevent memory leaks due to use of particular java/javax APIs-->
<Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
<Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />
<!-- Global JNDI resources
Documentation at /docs/jndi-resources-howto.html
-->
<GlobalNamingResources>
<!-- Editable user database that can also be used by
UserDatabaseRealm to authenticate users
-->
<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
</GlobalNamingResources>
<!-- A "Service" is a collection of one or more "Connectors" that share
a single "Container" Note: A "Service" is not itself a "Container",
so you may not define subcomponents such as "Valves" at this level.
Documentation at /docs/config/service.html
-->
<Service name="Catalina">
<!--The connectors can use a shared executor, you can define one or more named thread pools-->
<!--
<Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
maxThreads="150" minSpareThreads="4"/>
-->
<!-- A "Connector" represents an endpoint by which requests are received
and responses are returned. Documentation at :
Java HTTP Connector: /docs/config/http.html
Java AJP Connector: /docs/config/ajp.html
APR (HTTP/AJP) Connector: /docs/apr.html
Define a non-SSL/TLS HTTP/1.1 Connector on port 8080
-->
<Connector port="8080" protocol="HTTP/1.1"
address="0.0.0.0"
connectionTimeout="20000"
redirectPort="8443" />
<!-- A "Connector" using the shared thread pool-->
<!--
<Connector executor="tomcatThreadPool"
port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
-->
<!-- Define an SSL/TLS HTTP/1.1 Connector on port 8443
This connector uses the NIO implementation. The default
SSLImplementation will depend on the presence of the APR/native
library and the useOpenSSL attribute of the
AprLifecycleListener.
Either JSSE or OpenSSL style configuration may be used regardless of
the SSLImplementation selected. JSSE style configuration is used below.
-->
<!--
<Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol"
maxThreads="150" SSLEnabled="true">
<SSLHostConfig>
<Certificate certificateKeystoreFile="conf/localhost-rsa.jks"
type="RSA" />
</SSLHostConfig>
</Connector>
-->
<!-- Define an SSL/TLS HTTP/1.1 Connector on port 8443 with HTTP/2
This connector uses the APR/native implementation which always uses
OpenSSL for TLS.
Either JSSE or OpenSSL style configuration may be used. OpenSSL style
configuration is used below.
-->
<!--
<Connector port="8443" protocol="org.apache.coyote.http11.Http11AprProtocol"
maxThreads="150" SSLEnabled="true" >
<UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" />
<SSLHostConfig>
<Certificate certificateKeyFile="conf/localhost-rsa-key.pem"
certificateFile="conf/localhost-rsa-cert.pem"
certificateChainFile="conf/localhost-rsa-chain.pem"
type="RSA" />
</SSLHostConfig>
</Connector>
-->
<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
<!-- An Engine represents the entry point (within Catalina) that processes
every request. The Engine implementation for Tomcat stand alone
analyzes the HTTP headers included with the request, and passes them
on to the appropriate Host (virtual host).
Documentation at /docs/config/engine.html -->
<!-- You should set jvmRoute to support load-balancing via AJP ie :
<Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
-->
<Engine name="Catalina" defaultHost="localhost">
<!--For clustering, please take a look at documentation at:
/docs/cluster-howto.html (simple how to)
/docs/config/cluster.html (reference documentation) -->
<!--
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
-->
<!-- Use the LockOutRealm to prevent attempts to guess user passwords
via a brute-force attack -->
<Realm className="org.apache.catalina.realm.LockOutRealm">
<!-- This Realm uses the UserDatabase configured in the global JNDI
resources under the key "UserDatabase". Any edits
that are performed against this UserDatabase are immediately
available for use by the Realm. -->
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
</Realm>
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true">
<!-- SingleSignOn valve, share authentication between web applications
Documentation at: /docs/config/valve.html -->
<!--
<Valve className="org.apache.catalina.authenticator.SingleSignOn" />
-->
<!-- Access log processes all example.
Documentation at: /docs/config/valve.html
Note: The pattern used is equivalent to using pattern="common" -->
<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
prefix="localhost_access_log" suffix=".txt"
pattern="%h %l %u %t "%r" %s %b" />
</Host>
</Engine>
</Service>
</Server>
data目录也给了权限
现在需要的就是cat能捕捉到我抛出的异常正常显示
报错界面:
下面是抛出异常给cat检测的代码
package com.itcast.springbootcat.controller;
import com.dianping.cat.Cat;
import com.dianping.cat.message.Event;
import com.dianping.cat.message.Transaction;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class CatController {
@RequestMapping("test")
public String test(){
Transaction t = Cat.newTransaction("URL","pageName");
try{
Cat.logEvent("URL.Server","serverIp", Event.SUCCESS,"ip=127.0.0.1");
Cat.logMetricForCount("metric.key");
Cat.logMetricForDuration("metric.key",5);
//抛出异常
int i = 1/0;
t.setStatus(Transaction.SUCCESS);
}catch (Exception e){
//捕获异常,打印异常信息
t.setStatus(e);
Cat.logError(e);
}finally {
t.complete();
}
return "hello cat";
}
}
idea报错:
<dependency>
<groupId>com.dianping.cat</groupId>
<artifactId>cat-client</artifactId>
<version>3.1.0</version>
</dependency>
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.13.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.itcast</groupId>
<artifactId>springboot-cat</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>springboot-cat</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.dianping.cat</groupId>
<artifactId>cat-client</artifactId>
<version>3.1.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
SpringbootCatApplication.java
从你提供的代码和问题描述中,问题可能出在以下方面:
CAT SDK 配置问题:请确保你已经正确配置了CAT SDK。这通常涉及到在项目中加入CAT相关的库,并且在配置文件中添加CAT的URL和其他相关信息。
权限问题:如果CAT监控涉及到不同的系统或服务,需要确认是否有足够的权限访问和发送监控信息。
网络问题:CAT监控通常需要网络连接。如果网络配置不正确或目标服务器不可达,可能导致CAT报错。
异常处理:在你的代码中,当有异常发生时,你正确地捕获了异常并且进行了日志记录。但是,当你调用t.setStatus(e);时,你可能需要更仔细地考虑状态设置。一般来说,你应该根据异常类型或严重性将事务状态设置为失败或其他合适的状态。
其他问题:还可能有其他问题,例如版本不兼容、服务端错误等。
要解决这个问题,你可以尝试以下步骤:
检查配置:确认你的CAT SDK配置是否正确,包括库的引入和配置文件的设置。
查看错误日志:当出现错误时,查看详细的错误日志。这可以帮助你了解问题的具体原因。
测试其他CAT API:如果可能的话,你可以尝试使用CAT的其他API进行测试,以确认是否所有的CAT API都出现同样的问题。
检查外部系统和服务:如果CAT监控涉及到其他系统或服务,确保这些系统或服务是可用的,并且有足够的权限进行交互。
逐行检查代码:逐行检查代码,尤其是事务设置状态和完成事务的部分,确保没有语法错误或逻辑问题。
如果你可以提供更详细的错误信息或日志,我可以帮助你更准确地定位和解决问题。
引用 皆我百晓生 小程序回复内容作答:
根据您提供的信息,看起来您已经正确配置了Cat,但仍然无法监控异常。有几个可能的原因:
<dependency>
<groupId>com.dianping.cat</groupId>
<artifactId>cat-client</artifactId>
<version>3.0.0</version>
</dependency>
config.properties
文件,其中应该至少包含以下配置:domain=${CAT_DOMAIN}
servers=${CAT_SERVERS}
http://localhost:8080
来确认CAT是否正常工作。如果仍然无法解决您的问题,请提供更多的错误信息或日志,以便我们能够更好地帮助您。
有其他报错信息吗
该回答通过自己思路及引用到GPTᴼᴾᴱᴺᴬᴵ搜索,得到内容具体如下:
从你提供的信息来看,你的项目配置和依赖都没有问题。Cat无法捕捉到异常的原因可能是由于以下原因:
Cat的配置文件(cat.config)没有正确配置。请确保cat.config文件中的serverIp、pageName、metric.key等参数设置正确。
Cat的日志级别设置过高,导致异常信息被过滤掉。请检查cat.logback.xml或log4j.properties文件中的日志级别设置,确保至少设置为ERROR级别。
请检查防火墙设置,确保8080端口是开放的。
请尝试在本地运行一个简单的测试程序,使用Cat进行监控,看是否能正常捕获异常。如果可以,说明问题可能出在你的业务代码中。如果仍然无法捕获异常,请查看Cat的日志文件,看是否有其他错误信息。
如果以上方法都无法解决问题,建议升级Cat客户端到最新版本,或者尝试使用其他应用性能管理(APM)工具,如SkyWalking、New Relic等。
如果以上回答对您有所帮助,点击一下采纳该答案~谢谢
互相ping一下看看。
结合GPT给出回答如下请题主参考
针对该问题,建议按以下步骤检查:
1.确认 CAT_HOME
变量是否正确配置,CAT_HOME变量应该指向你的CAT安装目录。
2.在 CAT_HOME
目录下,进入 bin
文件夹,运行 startup.sh
命令,确认 Cat 服务是否正常启动。
3.检查CAT Agent 的配置是否正确,包括 server.xml
和 client.xml
文件。
a. server.xml
配置文件中,需要将 CAT 服务的 IP 地址改为你的虚拟机的 IP 地址,即将 127.0.0.1 改为 192.168.157.134。
b. client.xml
配置文件中,需要将 <cat-server>
标签中的 IP 地址也改为你的虚拟机的 IP 地址。
4.确认你的虚拟机防火墙是否开放了 9000 和 8080 端口。
如果以上步骤确认无误,可以尝试重启 CAT 服务,或者检查你的应用代码中是否有使用到 CAT 监控的 API。
检查Tomcat的绑定地址:确保Tomcat已正确配置为绑定到所有网络接口,而不仅仅是localhost。您可以在Tomcat的server.xml配置文件中查找以下行:
<Connector port="8080" protocol="HTTP/1.1"
address="0.0.0.0" <!-- 这里确保是0.0.0.0 -->
...
如果address设置为0.0.0.0,则Tomcat会绑定到所有可用的网络接口。
您好,建议检查环境变量配置