1.现象：字节流向浏览器输出中文，可能会乱码（IE低版本）
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private void byteMethod(HttpServletResponse response) throws IOException, UnsupportedEncodingException {
String date = "你好";
ServletOutputStream outputStream = response.getOutputStream();
outputStream.write(date.getBytes();
}
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原因：服务器端和浏览器端的编码格式不一致。
解决方法：服务器端和浏览器端的编码格式保持一致
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private void byteMethod(HttpServletResponse response) throws IOException, UnsupportedEncodingException {
String date = "你好";
ServletOutputStream outputStream = response.getOutputStream();
response.setHeader("Content-Type", "text/html;charset=utf-8");
outputStream.write(date.getBytes("utf-8"));
}
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或者简写如下
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private void byteMethod(HttpServletResponse response) throws IOException, UnsupportedEncodingException {
String date = "你好";
ServletOutputStream outputStream = response.getOutputStream();
response.setContentType("text/html;charset=utf-8");
outputStream.write(date.getBytes("utf-8"));
}
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2.现象：字符流向浏览器输出中文出现 ？？？乱码
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private void charMethod(HttpServletResponse response) throws IOException {
String date = "你好";
PrintWriter writer = response.getWriter();
writer.write(date);
}
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原因：表示采用ISO-8859-1编码形式，该编码不支持中文
解决办法：同样使浏览器和服务器编码保持一致
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private void charMethod(HttpServletResponse response) throws IOException {
response.setCharacterEncoding("utf-8");
response.setHeader("Content-Type", "text/html;charset=utf-8");
String date = "中国";
PrintWriter writer = response.getWriter();
writer.write(date);
}
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注意！setCharacterEncoding()方法要在写入之前使用，否则无效！！！
或者简写如下
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private void charMethod(HttpServletResponse response) throws IOException {
response.setContentType("text/html;charset=GB18030");
String date = "中国";
PrintWriter writer = response.getWriter();
writer.write(date);
}
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总结：解决中文乱码问题使用方法 response.setContentType("text/html;charset=utf-8");可解决字符和字节的问题。
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