Jetty响应字符编码

问题描述

如何在我对UTF-8的回复中设置默认字符编码？

How do I set the default character encoding on my responses to UTF-8?

我已尝试过

    System.setProperty("file.encoding", "UTF-8");

和此

    System.setProperty("org.eclipse.jetty.util.UrlEncoding.charset", "utf-8");

两者都没有效果 - 响应仍然随标题发送

Neither has any effect - responses are still sent with the header

Content-Type: text/html; charset=ISO-8859-1

我想为所有text / html响应，并且理想地在代码而不是XML中。我正在使用Jetty 9。

I'd like to do this for all text/html responses, and ideally in code rather than XML. I'm using Jetty 9.

推荐答案

Jetty文档声称它默认使用UTF-8，但似乎是一个谎言。如果你做正常的 response.getWrite（）。println（Hello），那么内容编码确定如下。

The Jetty documentation claims it uses UTF-8 by default, but that seems to be a lie. If you do the normal response.getWrite().println("Hello"), then the content encoding is determined as follows.

1. 从内容类型到内容编码的默认映射是从 org / eclipse / jetty / http / encoding.properties ：

1. A default mapping from content-type to content-encoding is loaded from org/eclipse/jetty/http/encoding.properties:

        // MimeTypes.java:155
        ResourceBundle encoding = ResourceBundle.getBundle("org/eclipse/jetty/http/encoding");
        Enumeration<String> i = encoding.getKeys();
        while(i.hasMoreElements())
        {
            String type = i.nextElement();
            __encodings.put(type,encoding.getString(type));
        }

默认文件为：

text/html   = ISO-8859-1
text/plain  = ISO-8859-1
text/xml    = UTF-8
text/json   = UTF-8

1. Response.getWriter（）尝试使用该地图，但默认为ISO-8859-1

1. Response.getWriter() tries to use that map, but defaults to ISO-8859-1

@Override
public PrintWriter getWriter() throws IOException
{
    if (_outputType == OutputType.STREAM)
        throw new IllegalStateException("STREAM");

    if (_outputType == OutputType.NONE)
    {
        /* get encoding from Content-Type header */
        String encoding = _characterEncoding;
        if (encoding == null)
        {
            encoding = MimeTypes.inferCharsetFromContentType(_contentType);
            if (encoding == null)
                encoding = StringUtil.__ISO_8859_1;
            setCharacterEncoding(encoding);
        }

所以你可以看到 text / html 它不默认为UTF-8。我不认为有一种方法来改变默认从代码。最好的方法是将 encoding.properties 文件更改为：

So you can see that for text/html it doesn't default to UTF-8. I don't think there is a way of changing the default from code. The best you can do is change the encoding.properties file to this:

text/html   = UTF-8
text/plain  = UTF-8
text/xml    = UTF-8
text/json   = UTF-8

但即使如果找到一个不在其中的编码，它将默认为ISO-8859-1。

But even then if it finds an encoding that isn't in there it will default to ISO-8859-1.

这篇关于Jetty响应字符编码的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！