Usage of API documented as @since 1.6+

報錯:即方法是Java1.6纔開始有的apache

File ->Project Structure->Project Settings -> Modules -> Language Level->選一個,如8,如7均可以maven

或者在pom.xml 添加:ui

<build>  
    <plugins>  
        <plugin>  
            <groupId>org.apache.maven.plugins</groupId>  
            <artifactId>maven-compiler-plugin</artifactId>  
            <version>3.6.0</version>  
            <configuration>  
                <source>1.8</source>  
                <target>1.8</target>  
            </configuration>  
        </plugin>  
    </plugins>  
</build>  
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