"未解析的引用:http" Kotlin。为什么会这样？

Question

这就是它失败的地方。

完整的错误消息如下所示：

# 12 55.48[错误]未能执行goal org . jetbrains . kot Lin:kot Lin-maven-plugin:1 . 5 . 30:compile(编译)on project工具:编译失败# 12 55.48[错误]/workspace/app/src/main/kot Lin/com/ob/tool/log in controller . kt:[7，17]未解析的引用:http

package com.ob.tool

import org.apache.catalina.connector.Response
import org.springframework.http.HttpStatus
import org.springframework.http.ResponseEntity
import org.springframework.web.bind.annotation.*
import java.net.http.HttpResponse

@RestController
class LoginController {

    @CrossOrigin(origins = ["http://localhost:8080"])
    @PostMapping("/login")
    fun login(@RequestBody user: User): ResponseEntity<Response> {
       return if(user.username == "Admin" && user.password == "Admin4040") ResponseEntity(HttpStatus.OK) else ResponseEntity(HttpStatus.UNAUTHORIZED)
    }

}

我的Dockerfile/docker-compose看起来像这样:

FROM openjdk:8-jdk-alpine as build
WORKDIR /workspace/app

COPY mvnw .
COPY .mvn .mvn
COPY pom.xml .
COPY src src

RUN ./mvnw install -DskipTests
RUN mkdir -p target/dependency && (cd target/dependency; jar -xf ../*.jar)

FROM openjdk:8-jdk-alpine
VOLUME /tmp
ARG DEPENDENCY=/workspace/app/target/dependency
COPY --from=build ${DEPENDENCY}/BOOT-INF/lib /app/lib
COPY --from=build ${DEPENDENCY}/META-INF /app/META-INF
COPY --from=build ${DEPENDENCY}/BOOT-INF/classes /app
ENTRYPOINT ["java","-cp","app:app/lib/*","hello.Application"]

version: "3.5"

services:
  frontend:
    build: ./frontend
    ports:
      - "8080:8080"
    volumes:
      - ./frontend/src:/App/src

  backend:
    build: ./backend
    ports:
      - "8081:8081"
    volumes:
      - ./backend/src:/App/src

Answer 1

据我所知，< code>java.net.http包是在Java 11中引入的，但您在docker映像中使用的是JDK8。

话虽如此，您似乎根本没有在代码中使用java.net.http.HttpResponse，所以我相信您可以删除导入。