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问为cordapp构建springboot javax.Json未找到异常
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Stack Overflow用户

提问于 2019-02-20 10:27:29

回答 2查看 319关注 0票数 1

我正在编写一个springboot与cordaapp集成，并使用gradle构建。我想在springboot中调用CordaRPC。虽然我能够构建，但我总是得到下面的错误，

java.lang.ClassNotFoundException: javax.json.JsonValue
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at net.corda.nodeapi.ArtemisTcpTransport$Companion.tcpTransport(ArtemisTcpTransport.kt:84)
        at net.corda.nodeapi.ArtemisTcpTransport$Companion.tcpTransport$default(ArtemisTcpTransport.kt:44)
        at net.corda.client.rpc.CordaRPCClient.<init>(CordaRPCClient.kt:108)
        at net.corda.client.rpc.CordaRPCClient.<init>(CordaRPCClient.kt:83)
        at net.corda.client.rpc.CordaRPCClient.<init>(CordaRPCClient.kt:83)
        at net.corda.client.rpc.CordaRPCClient.<init>(CordaRPCClient.kt)

对于这条线，

CordaRPCClient rpcClient = new CordaRPCClient(rpcAddress);

我的build.gradle文件的片段，

... apply plugin: 'java' apply plugin: 'org.springframework.boot' apply plugin: 'io.spring.dependency-management' apply plugin: 'net.corda.plugins.cordapp' apply plugin: 'net.corda.plugins.cordformation' apply plugin: 'net.corda.plugins.quasar-utils' ... dependencies {

    testCompile "junit:junit:$junit_version"

    // Corda integration dependencies
    cordaCompile "$corda_release_group:corda-core:$corda_release_version"
    cordaCompile "$corda_release_group:corda-finance:$corda_release_version"
    cordaCompile "$corda_release_group:corda-jackson:$corda_release_version"
    cordaCompile "$corda_release_group:corda-rpc:$corda_release_version"
    cordaCompile "$corda_release_group:corda-webserver-impl:$corda_release_version"
    cordaRuntime "$corda_release_group:corda:$corda_release_version"
    cordaRuntime "$corda_release_group:corda-webserver:$corda_release_version"

    testCompile "$corda_release_group:corda-node-driver:$corda_release_version"

    // CorDapp dependencies
    // Specify your cordapp's dependencies below, including dependent CorDapps
    cordapp "$corda_release_group:corda-finance:$corda_release_version"

    compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.11.0'
    compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.11.0'
    compile group: 'org.apache.logging.log4j', name: 'log4j-slf4j-impl', version: '2.11.0'

//    implementation 'org.springframework.boot:spring-boot-starter-data-jpa' //    implementation 'org.springframework.boot:spring-boot-starter-jersey'
    implementation ('org.springframework.boot:spring-boot-starter-web', {
        exclude group: 'org.springframework.boot', module: 'spring-boot-starter-logging'
        exclude group: 'org.springframework.boot', module: 'logback-classic'
    }
    )
    testImplementation 'org.springframework.boot:spring-boot-starter-test'

    implementation files('<path to my cordapp jar>')

} ...

corda

回答 2

Stack Overflow用户

发布于 2019-02-20 22:59:13

添加依赖项

group='javax.json', module='javax.json-api', version='1.1.4'

票数 1

Stack Overflow用户

发布于 2019-05-02 23:17:36

实际的问题是apply plugin: 'io.spring.dependency-management'。

这是org.apache.activemq:artemis-core-client从2.6.2到2.6.4的颠簸，而这正是org.apache.geronimo.specs:geronimo-json_1.0_spec:1.0-alpha-1缺失的地方。

如果你移除了spring插件，一切都会恢复正常。

不管Spring Initializr生成了什么，您只需要

apply plugin: 'java' 
apply plugin: 'org.springframework.boot'

而且您可以安全地删除apply plugin: 'io.spring.dependency-management'

票数 1

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/54777941

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