java - OpenCSV解析CSV到列表头

我正在尝试使用opencsv 3.3与一些用户一起解析一个简单的csv文件，并将其放入Bean中，但是在运行代码时却遇到了一个找不到类的异常。下面是用于读取对象的Person.class文件。

public class Person {
    private String firstname;
    private String lastname;
    private String email;
    private String type;

    /*public Person () {}
    public Person (String firstname, String lastname, String email, String type) {
        this.firstname = firstname;
        this.lastname = lastname;
        this.email = email;
        this.type = type;
    }*/

    //set all the variables for the person
    //set the first name
    public String getFirstName() {
        return firstname;
    }
    public void setFirstName(String firstname) {
        this.firstname = firstname;
    }

    //set the last name
    public String getLastName() {
        return lastname;
    }
    public void setLastName (String lastname) {
        this.lastname = lastname;
    }

    //set the email address of the user
    public String setEmail() {
        return email;
    }
    public void getEmail(String email) {
        this.email = email;
    }

    //set the type for the user
    public String setType() {
        return type;
    }
    public void getType (String type) {
        this.type = type;
    }

    @Override
    public String toString() {
        return "User [firstname=" + firstname + ", lastname=" + lastname + ", email=" + email + ", type=" + type + "]";
    }
}

读取csv的代码如下。

String filename = "D:/Projects/deploy/resources/sample.csv";
try {
    HeaderColumnNameTranslateMappingStrategy<Person> strategy = new HeaderColumnNameTranslateMappingStrategy<Person>();
    strategy.setType(Person.class);
    Map<String, String> mapping = new HashMap<String, String>();
    mapping.put("firstname", "firstname");
    mapping.put("lastname", "lastname");
    mapping.put("email", "email");
    mapping.put("type", "type");
    strategy.setColumnMapping(mapping);
    System.out.println("past the mapping");

    CSVReader reader = new CSVReader(new FileReader(filename));
    System.out.println("past the reader");

    CsvToBean<Person> csvbean = new CsvToBean<Person>();
    System.out.println("past the csvtobean");

    List<Person> csvusers = csvbean.parse(strategy, reader);
    System.out.println(csvusers);


} catch (Exception e) {
    System.out.println("there was an exception in the main program:" + e);
}

当我运行它时，它表示没有为标头映射找到类。您是否知道Person.class或映射是否有问题？您能提供的任何帮助将不胜感激。

最佳答案

如果有人遇到此问题，则上面的代码可以正常工作。我的类路径中没有opencsv所需的apache commons lang3。添加完这些后，一切都会开始正常运行。

谢谢
缺口