杰克逊(Jackson)没有正确地反序列化重音符号

时间:2018-10-21 14:11:59

标签: java xml character-encoding jackson jackson-dataformat-xml

我正在使用jackson通过以下代码序列化XML文件中的客户实体:

XmlMapper mapper = new XmlMapper();

String exportPath = System.getenv("TFH_HOME") + File.separator + "data" + File.separator + "XML" + File.separator;

mapper.enable(SerializationFeature.INDENT_OUTPUT);
mapper.enable(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT);

List<Customer> customers = customerService.findAllExplicit();

    customers.forEach((customer) -> 
    {
        try 
        {
            mapper.writeValue(new File(exportPath + "customers" + File.separator + customer.getCustomerNumber() + ".xml"), customer);
        }
        catch (IOException ex) 
        {
            logger.error("Error serializing customer " + customer.toString() + " : " + ex.getMessage());
        }
    });

这很完美,可以为每个客户创建一个XML文件及其所有数据。问题在于此数据是法语的,因此包含诸如é的强调字符。这是我用来反序列化所述客户的代码:

public void importCustomers()
{
    File customerFolder = new File(exportPath + "customers");

    for (File customerFile : customerFolder.listFiles())
    {
        try 
        {
            String customerXML = inputStreamToString(new FileInputStream(customerFile));

            Customer customer = mapper.readValue(customerXML, Customer.class);

            customer.setId(null);

            customerService.save(customer);
        } 
        catch (IOException ex) 
        {
            logger.error("Error importing customer : " + ex.getMessage());
        }
    }
}

private static String inputStreamToString(InputStream is) throws IOException 
{
    StringBuilder sb = new StringBuilder();
    String line;
    try (BufferedReader br = new BufferedReader(new InputStreamReader(is))) 
    {
        while ((line = br.readLine()) != null)
        {
            sb.append(line);
        }
    }

    return sb.toString();
}

它工作正常,除了反序列化时将é字符转换为‰(它们已序列化,并且生成的XML文件显示正确的字符)。我知道这与字符编码(UTF8与ISO-8859-2)有关,但是我不知道如何将其连接到Jackson的反序列化机制中。

任何帮助将不胜感激!

谢谢

1 个答案:

答案 0 :(得分:0)

我最终放弃了Jackson,转而使用java.beans.XMLDecoder;类。使用此方法时,保留加重字符。