本文介绍了Zipkin服务器提供Whitelabel错误页面的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
在使用Spring Boot(v2)创建Zipkin服务器时，我面临Whitelabel错误页面.
"
白标错误页面
此应用程序没有针对/error的显式映射，因此您将其视为后备.
IST 2019年10月30日星期三11:21:35 发生意外错误(类型=未找到，状态= 404). 没有可用消息
"
而且，当我在春季启动中运行应用程序时，我得到:
找不到模板位置:classpath:/templates/(请添加一些模板或检查您的 Thymeleaf配置)"
While creating a Zipkin Server with Spring Boot(v2), I am facing Whitelabel Error Page.
"
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Wed Oct 30 11:21:35 IST 2019 There was an unexpected error (type=Not Found, status=404). No message available
"
And also while i run the application in spring boot, i get:
" Cannot find template location: classpath:/templates/ (please add some templates or check your Thymeleaf configuration) "
<?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>2.2.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>edu.rohit</groupId>
<artifactId>ZipkinServer</artifactId>
<version>1</version>
<name>ZipkinServer</name>
<description>Demo project for Spring Boot Slueth-Zipkin</description>
<properties>
<java.version>1.8</java.version>
<!-- <spring-cloud.version>Hoxton.RC1</spring-cloud.version> -->
<spring-cloud.version>2.1.3.RELEASE</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<!-- <dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web-services</artifactId>
</dependency> -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- <dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-rest-hal-browser</artifactId>
</dependency> -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>
<version>${spring-cloud.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zipkin</artifactId>
<version>${spring-cloud.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-sleuth-zipkin</artifactId>
<version>${spring-cloud.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<!-- <dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
-->
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
</repositories>
</project>
application.properties
server.port=9411
#spring.zipkin.baseUrl= http://localhost:9411
#server.error.whitelabel.enabled=false
#server.error.path=/error-spring
# spring.autoconfigure.exclude= org.springframework.boot.autoconfigure.web.servlet.error.ErrorMvcAutoConfiguration
#spring.freemarker.template-loader-path=classpath:/templates/
#spring.freemarker.prefer-file-system-access=false
management.security.enabled=false
ZipkinServerApplication
package edu.rohit.ZipkinServer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
SpringBootApplication(scanBasePackages={"edu.rohit.ZipkinServer"})
public class ZipkinServerApplication {
/*@Bean
public AlwaysSampler defaultSampler() {
return new AlwaysSampler();
}*/
public static void main(String[] args) {
SpringApplication.run(ZipkinServerApplication.class, args);
}
}
请帮助我解决此问题
推荐答案
I did some study in actuator use in spring boot 2.x.
The actuator use have significant changes. The default endpoint root path is '/actuator' and not'/' as in 1.x. By default only two endpoint(/health, /info) is enable.
#To make all endpoints enable set
management.endpoints.web.exposure.include=*
#To specifically enable one endpoint(/beans) set
management.endpoint.beans.enabled=true
#Or we can create a WebSecurity bean like this:
@Bean
public SecurityWebFilterChain securityWebFilterChain(ServerHttpSecurity http){
return http.authorizeExchange()
.pathMatchers("/actuator/**").permitAll()
.anyExchange().authenticated()
.and().build();
}
#Remember in spring boot 1.x all this issues was resolved by setting the bellow but it is #depreciated in 2.x
management.security.enabled=false
#By default the base path is '/actuator' but can be changed by setting
management.endpoints.web.base-path= /<Mypath>
有关更多详细信息，请阅读文档 https://www. baeldung.com/spring-boot-actuators#boot-2x-actuator
For more details can read the document https://www.baeldung.com/spring-boot-actuators#boot-2x-actuator
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