Ktor：无法解析 JacksonSerializer

Posted 2023-04-15

【中文标题】Ktor：无法解析 JacksonSerializer

【英文标题】：Ktor: cannot resolve JacksonSerializer

【发布时间】：2019-05-01 09:47:16

【问题描述】：

我正在尝试在 Kotlin Multiplatform 项目的 commonMain 模块中设置 ktor http 客户端（如此处所述 https://ktor.io/clients/http-client/features/json-feature.html），但无法解析对它的依赖：

    val client = HttpClient 
        install(JsonFeature) 
            serializer = JacksonSerializer()
        
    

Gradle 版本：4.7。

这里是通用模块的 build.gradle：

apply plugin: 'kotlin-multiplatform'
apply plugin: 'kotlinx-serialization'

    kotlin 
        targets 
            // Change to `presets.iosArm64` to deploy the app to iPhone
            fromPreset(presets.iosX64, 'ios') 
                compilations.main.outputKinds('FRAMEWORK')
            
        
        sourceSets 
            commonMain.dependencies 
                implementation 'org.jetbrains.kotlin:kotlin-stdlib'
                implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core-common:$coroutines_version"
                implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime-common:$serialization_version"

                implementation "io.ktor:ktor-client-core:$ktor_version"
                implementation "io.ktor:ktor-client-json:$ktor_version"
                implementation "io.ktor:ktor-client-jackson:$ktor_version"
            
            commonTest 
                dependencies 
                    implementation "org.jetbrains.kotlin:kotlin-test-common"
                    implementation "org.jetbrains.kotlin:kotlin-test-annotations-common"
                
            
            iosMain 
                dependencies 
                    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core-native:$coroutines_version"
                    implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime-native:$serialization_version"

                    implementation "io.ktor:ktor-client-ios:$ktor_version"
                    implementation "io.ktor:ktor-client-core-ios:$ktor_version"
                    implementation "io.ktor:ktor-client-json-ios:$ktor_version"
                
            
        
    

【参考方案1】：

您不能在 ios 上使用 jackson，因为它是 JVM 特定的。在 ios 上只有 Kotlinx.serialization 有效。