我有以下内容：

1. 业务层EJB

package ejb.x.y;

@Stateless
public class FileFormatConvertor {  
    public byte[] fromExcelToCsv(Workbook workbook, Sheet sheet, String delimiter) throws Exception {
        ...
}

2. Web层的Bean

package web.x.y;

@Named
@SessionScoped
public class FileUploadViewAction implements Serializable {
    @EJB
    private FileFormatConvertor fileFormatConvertor ;   
    // Other declarations
    if (fileType == Type.EXCEL) {
        bytesToUpload =   fileFormatConvertor.fromExcelToCsv(workbook, sheet, delimiter);
    }
    // Rest of code
}

3.POM文件

耳朵 pom.xml

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <artifactId>xy-portal</artifactId>
        <groupId>com.xy</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <groupId>com.xy</groupId>
    <artifactId>ear-x-y</artifactId>
    <version>${project.version}</version>
    <packaging>ear</packaging> …