我正在使用apache-camel开发“代理”服务。
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.comapany</groupId>
<artifactId>proxy</artifactId>
<version>1.0-SNAPSHOT</version>
<name>Fabric8 :: Quickstarts :: Spring-Boot :: Camel</name>
<description>Spring Boot example running a Camel route</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!-- configure the versions you want to use here -->
<fabric8.version>3.0.11.fuse-000039-redhat-1</fabric8.version>
<spring-boot.version>1.5.12.RELEASE</spring-boot.version>
<arquillian-cube.version>1.9.0</arquillian-cube.version>
<assertj.version>2.4.1</assertj.version>
<!-- maven plugin versions -->
<fabric8.maven.plugin.version>3.5.33.fuse-000067-redhat-1</fabric8.maven.plugin.version>
<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.fabric8</groupId>
<artifactId>fabric8-project-bom-camel-spring-boot</artifactId>
<version>${fabric8.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- Enabling health checks -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-undertow</artifactId>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-servlet</artifactId>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-http</artifactId>
<version>2.22.0</version>
</dependency>
<!-- testing -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jboss.arquillian.junit</groupId>
<artifactId>arquillian-junit-container</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.arquillian.cube</groupId>
<artifactId>arquillian-cube-openshift</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.fabric8</groupId>
<artifactId>kubernetes-assertions</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<defaultGoal>spring-boot:run</defaultGoal>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven-surefire-plugin.version}</version>
<inherited>true</inherited>
<configuration>
<argLine>-DenableImageStreamDetection=true</argLine>
<excludes>
<exclude>**/*KT.java</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${spring-boot.version}</version>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>io.fabric8</groupId>
<artifactId>fabric8-maven-plugin</artifactId>
<version>${fabric8.maven.plugin.version}</version>
<executions>
<execution>
<goals>
<goal>resource</goal>
<goal>build</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
有我的Application.java：
@SpringBootApplication
@Configuration
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
@Bean
public ServletRegistrationBean camelServletRegistrationBean() {
ServletRegistrationBean registration = new ServletRegistrationBean(new CamelHttpTransportServlet(), "/proxy/*");
registration.setName("CamelServlet");
return registration;
}
}
还有我的路由组件：
@Component
public class Router extends RouteBuilder {
@Value("${remote.base.url}")
private String baseUrl;
@Override
public void configure() throws Exception {
restConfiguration().component("servlet").bindingMode(RestBindingMode.auto);
rest()
.get("/users/{id}")
.to("direct:user_id/${header.id}");
from("direct:user_id/${header.id}")
.log(LoggingLevel.INFO, "request for users/id has been received")
.toD(baseUrl + "/redirect/${header.id}/?bridgeEndpoint=true")
.convertBodyTo(String.class);
}
}
基本上是我要达到的目标：静止端点，记录收到的请求，将其重定向到外部网址。
org.apache.camel.http.common.HttpOperationFailedException: HTTP operation failed invoking http://localhost:8090/redirect/M70%20KEP/users/M70%20KEP with statusCode: 404
at org.apache.camel.component.http.HttpProducer.populateHttpOperationFailedException(HttpProducer.java:273)
at org.apache.camel.component.http.HttpProducer.process(HttpProducer.java:182)
at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
at org.apache.camel.processor.SendDynamicProcessor$1.doInAsyncProducer(SendDynamicProcessor.java:132)
at org.apache.camel.impl.ProducerCache.doInAsyncProducer(ProducerCache.java:445)
at org.apache.camel.processor.SendDynamicProcessor.process(SendDynamicProcessor.java:127)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:138)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:101)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
at org.apache.camel.component.direct.DirectBlockingProducer.process(DirectBlockingProducer.java:53)
at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:148)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:97)
at org.apache.camel.http.common.CamelServlet.doService(CamelServlet.java:208)
at org.apache.camel.http.common.CamelServlet.service(CamelServlet.java:78)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:111)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:64)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:330)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:812)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
如果有人能解释为什么我的预期URL附加了我的其余映射，我将非常感谢。
同样，如果有一个我想实现的案例的例子-指向正确的博客或github / gitlab / bitbucket回购将非常感激。
感谢
答案 0 :(得分：0)
完成此骆驼设置（并使遇到相同问题的其他开发人员更轻松）。
感谢@Bedla在桥接端点方面的帮助-如果没有您的帮助，我不会猜到它的。
要克服BindingException，我必须在pom文件中添加另一个依赖项（但是原始异常中的错误消息根本没有帮助）
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jackson</artifactId>
</dependency>
但这还不是故事的结局。碰巧删除了HttpCamel标头之后，您也删除了CamelHttpMethod标头，经过一段时间的调试，我在代码中找到了它：HttpHelper-> createMethod：
// compute what method to use either GET or POST (header take precedence)
HttpMethods m = exchange.getIn().getHeader(Exchange.HTTP_METHOD, HttpMethods.class);
if (m != null) {
// always use what end-user provides in a header
answer = m;
} else if (queryString != null) {
// if a query string is provided then use GET
answer = HttpMethods.GET;
} else {
// fallback to POST if we have payload, otherwise GET
answer = hasPayload ? HttpMethods.POST : HttpMethods.GET;
}
}
因此，除非您拥有一个自动查询字符串，否则您将使用POST（在我看来这是一个问题）。
最后，我得到以下路由配置：
@Component
public class EmailRouter extends RouteBuilder {
@Value("${remote.base.url}")
private String baseUrl;
@Override
public void configure() throws Exception {
restConfiguration().component("servlet").bindingMode(RestBindingMode.json);
rest()
.get("/users/{id}")
.to("direct:user_id");
from("direct:user_id")
.log(LoggingLevel.INFO, "request for users/id has been received")
.removeHeaders("CamelHttp*")
.setHeader("CamelHttpMethod", constant("GET"))
.toD(baseUrl + "/redirect/${header.id}")
.convertBodyTo(String.class);
}
}