在poe.xml中加入

  <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>

添加之前

<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.test</groupId>
  <artifactId>MOOC18-08</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  
  


  <dependencies>
  	<dependency>
	    <groupId>io.netty</groupId>
	    <artifactId>netty-all</artifactId> <!-- Use 'netty-all' for 4.0 or above -->
	    <version>4.1.33.Final</version>
	</dependency>
  </dependencies>
</project>

添加之后

<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.test</groupId>
  <artifactId>MOOC18-08</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  
  
  <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>

  <dependencies>
  	<dependency>
	    <groupId>io.netty</groupId>
	    <artifactId>netty-all</artifactId> <!-- Use 'netty-all' for 4.0 or above -->
	    <version>4.1.33.Final</version>
	</dependency>
  </dependencies>
</project>