小编Mic*_*man的帖子

我遇到了最新版本的 Camel 和 REST DSL 路由的问题。完整代码可以从这里找到并运行：https : //github.com/mikevoxcap/nvisia-catalog-camel-service。当我尝试运行路由时出现异常，潜在原因如下：

Caused by: java.lang.NoSuchMethodError: com.fasterxml.jackson.databind.introspect.AnnotatedMember.getType()Lcom/fasterxml/jackson/databind/JavaType;
....
at com.fasterxml.jackson.databind.ObjectWriter.writeValue(ObjectWriter.java:926)
    at org.apache.camel.component.jackson.JacksonDataFormat.marshal(JacksonDataFormat.java:154)
    at org.apache.camel.processor.MarshalProcessor.process(MarshalProcessor.java:69)

我的问题是，我应该针对哪个版本的 Jackson 不再收到此异常。

我引入了以下依赖项：

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <spring.boot.version>1.3.5.RELEASE</spring.boot.version>
    <camel.version>2.17.1</camel.version>
    <java.version>1.8</java.version>
</properties>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-dependencies</artifactId>
            <version>${spring.boot.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>

    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-spring-boot</artifactId>
        <version>${camel.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-jackson</artifactId>
        <version>${camel.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-servlet</artifactId>
        <version>${camel.version}</version>
    </dependency>
    <dependency>
        <groupId>org.apache.camel</groupId>
        <artifactId>camel-swagger-java</artifactId>
        <version>${camel.version}</version>
    </dependency>

    <!-- Testing -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency> …

调查Springfox和Swagger UI,但我遇到了一个问题.我使用Spring Boot REST示例项目作为我的PoC的基础.我正在运行JDK 8,该项目利用了Gradle.

首先,这是项目的文件内容:

的build.gradle

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:1.2.7.RELEASE")
    }
}

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'spring-boot'

jar {
    baseName = 'gs-rest-service'
    version =  '0.1.0'
}

repositories {
    mavenCentral()
    jcenter()
}

sourceCompatibility = 1.8
targetCompatibility = 1.8

dependencies {
    compile("org.springframework.boot:spring-boot-starter-web")
    compile("io.springfox:springfox-swagger2:2.2.2")
    compile("io.springfox:springfox-swagger-ui:2.2.2")
    testCompile("junit:junit")
}

task wrapper(type: Wrapper) {
    gradleVersion = '2.3'
}

GreetingController.java

package hello;

import java.util.concurrent.atomic.AtomicLong;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class GreetingController …