Spring Files.readString()不适用于将Maven设置为Java 11的情况 [英] Spring Files.readString() does not work with Maven set to Java 11
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问题描述
尝试编写一个简单的应用程序,该应用程序读取文件并打印出文件内容.我读到Java 11具有Java.io.file库,因此我使用了它.我在本地创建了一个.txt文件.
Trying to write a simple application that reads a file and prints out the file's content. I read that Java 11 has Java.io.file library so I used it. I created a .txt file locally.
我的主要班级是这样的:
My main class looks like this:
package com.iz.backend;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.RequestMapping;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.Path;
import javax.swing.text.AbstractDocument.Content;
@SpringBootApplication
public class BackendApplication {
public static void main(String[] args) {
SpringApplication.run(BackendApplication.class, args);
Path filePath = Paths.get("/Users/iz/Proj/backend/src/testFile.txt");
try
{
String content = Files.readString(filePath);
System.out.println(content);
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
运行时
mvn clean install
编译并生成一个jar文件时,出现编译错误:
to compile and build a jar file, I get a compilation error:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project backend: Compilation failure
[ERROR] /home/proj/backend/src/main/java/com/iz/backend/BackendApplication.java:[26,34] error: cannot find symbol
[ERROR]
[ERROR] -> [Help 1]
推荐答案
对我有用,并带有以下pom:
Works for me, with the following pom:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
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