android读取word文档的方法：一，第三方应用打开

String path = Environment.getExternalStorageDirectory().getPath().concat("/").concat("myDoc").concat("/").concat("a.doc");
File docFile = new File(path);
Intent in = new Intent("android.intent.action.VIEW");
in.addCategory("android.intent.category.DEFAULT");
Uri data;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
// "net.csdn.blog.ruancoder.fileprovider"即是在清单文件中配置的authorities
data = FileProvider.getUriForFile(mContext, "com.sailing.fileprovider", docFile);
// 给目标应用一个临时授权
in.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
} else {
data = Uri.fromFile(docFile);
}
in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
in.setDataAndType(data, "application/msword");
startActivity(in);

该内容涉及两个重要的知识点：

1.判断你使用的androidsdk是否大于23，大于23时候是不能直接读取本地的文件的，文件需要使用fileprovider,URI需要特殊处理。

Uri data;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
// "net.csdn.blog.ruancoder.fileprovider"即是在清单文件中配置的authorities
data = FileProvider.getUriForFile(mContext, "com.sailing.fileprovider", docFile);
// 给目标应用一个临时授权
in.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
} else {
data = Uri.fromFile(docFile);
}

2.打开doc文档需要使用setDataAndType方法设置对应的值：”application/msword”;

in.setDataAndType(data, "application/msword");

private final String[][] MIME_MapTable = {
//{后缀名，MIME类型}
{".3gp", "video/3gpp"},
{".apk", "application/vnd.android.package-archive"},
{".asf", "video/x-ms-asf"},
{".avi", "video/x-msvideo"},
{".bin", "application/octet-stream"},
{".bmp", "image/bmp"},
{".c", "text/plain"},
{".class", "application/octet-stream"},
{".conf", "text/plain"},
{".cpp", "text/plain"},
{".doc", "application/msword"},
{".docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"},
{".xls", "application/vnd.ms-excel"},
{".xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"},
{".exe", "application/octet-stream"},
{".gif", "image/gif"},
{".gtar", "application/x-gtar"},
{".gz", "application/x-gzip"},
{".h", "text/plain"},
{".htm", "text/html"},
{".html", "text/html"},
{".jar", "application/java-archive"},
{".java", "text/plain"},
{".jpeg", "image/jpeg"},
{".jpg", "image/jpeg"},
{".js", "application/x-javascript"},
{".log", "text/plain"},
{".m3u", "audio/x-mpegurl"},
{".m4a", "audio/mp4a-latm"},
{".m4b", "audio/mp4a-latm"},
{".m4p", "audio/mp4a-latm"},
{".m4u", "video/vnd.mpegurl"},
{".m4v", "video/x-m4v"},
{".mov", "video/quicktime"},
{".mp2", "audio/x-mpeg"},
{".mp3", "audio/x-mpeg"},
{".mp4", "video/mp4"},
{".mpc", "application/vnd.mpohun.certificate"},
{".mpe", "video/mpeg"},
{".mpeg", "video/mpeg"},
{".mpg", "video/mpeg"},
{".mpg4", "video/mp4"},
{".mpga", "audio/mpeg"},
{".msg", "application/vnd.ms-outlook"},
{".ogg", "audio/ogg"},
{".pdf", "application/pdf"},
{".png", "image/png"},
{".pps", "application/vnd.ms-powerpoint"},
{".ppt", "application/vnd.ms-powerpoint"},
{".pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation"},
{".prop", "text/plain"},
{".rc", "text/plain"},
{".rmvb", "audio/x-pn-realaudio"},
{".rtf", "application/rtf"},
{".sh", "text/plain"},
{".tar", "application/x-tar"},
{".tgz", "application/x-compressed"},
{".txt", "text/plain"},
{".wav", "audio/x-wav"},
{".wma", "audio/x-ms-wma"},
{".wmv", "audio/x-ms-wmv"},
{".wps", "application/vnd.ms-works"},
{".xml", "text/plain"},
{".z", "application/x-compress"},
{".zip", "application/x-zip-compressed"},
{"", "*/*"}
};