问题描述
我需要在android中生成一个webhook网址。最初,我尝试使用Spring Framework,但是实现起来似乎很困难,我只是想公开一个单独的webhook url,所以我寻找了一个轻量级的框架。我现在一直在尝试使用spark-java,但无法运行它。
错误:
Suppressed: java.util.concurrent.ExecutionException: com.android.tools.r8.errors.a: MethodHandle.invoke and MethodHandle.invokeExact are only supported starting with Android O (--min-api 26)
at com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:552)
at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:513)
at com.google.common.util.concurrent.FluentFuture$TrustedFuture.get(FluentFuture.java:86)
at com.android.tools.r8.utils.U0.a(:14)
at com.android.tools.r8.utils.U0.a(:9)
... 114 more
[CIRculaR REFERENCE:com.android.tools.r8.errors.a: MethodHandle.invoke and MethodHandle.invokeExact are only supported starting with Android O (--min-api 26)]
Caused by: com.android.tools.r8.a: MethodHandle.invoke and MethodHandle.invokeExact are only supported starting with Android O (--min-api 26)
这是我的build.gradle文件:
plugins {
id 'com.android.application'
// id 'org.springframework.boot' version '2.3.3.RELEASE'
// id 'io.spring.dependency-management' version '1.0.10.RELEASE'
}
//apply plugin: 'com.android.application'
android {
compileSdkVersion 30
buildToolsversion "30.0.2"
defaultConfig {
applicationId "com.fivefaces.tauri"
minSdkVersion 16
targetSdkVersion 30
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'),'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
implementation filetree(dir: "libs",include: ["*.jar"])
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'com.google.android.material:material:1.0.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'androidx.navigation:navigation-fragment:2.1.0'
implementation 'androidx.navigation:navigation-ui:2.1.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
compileOnly 'org.projectlombok:lombok:1.18.12'
annotationProcessor 'org.projectlombok:lombok:1.18.12'
testCompileOnly 'org.projectlombok:lombok:1.18.12'
testAnnotationProcessor 'org.projectlombok:lombok:1.18.12'
// https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind
compile group: 'com.fasterxml.jackson.core',name: 'jackson-databind',version: '2.0.1'
compile "com.sparkjava:spark-core:2.9.2"
}
- 版本版本为6.6.1
- 在
Project Structure
中,我已经检查了定义的Java SDK,并将其正确设置为1.8 - 我正在使用的最低Android SDK是API 16
解决方法
我已经能够在Android上运行Spark服务器。这是我的build.gradle。
apply plugin: 'com.android.application'
android {
compileSdkVersion 29
buildToolsVersion "29.0.3"
defaultConfig {
applicationId "com.mycom.appname"
minSdkVersion 27
targetSdkVersion 29
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'),'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility = 1.8
targetCompatibility = 1.8
}
}
dependencies {
implementation fileTree(dir: 'libs',include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'com.sparkjava:spark-core:2.9.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
}
我们俩都使用Spark 2.9.2。我对gradle不太熟悉,但是我注意到我们表示依赖的方式不同(编译“ com.sparkjava:spark-core:2.9.2”与实现'com.sparkjava:spark-core:2.9 .2')。