Java URLConnection.getFileNameMap方法代码示例

import java.net.URLConnection; //导入方法依赖的package包/类
private String guessMimeType(String path)
{
    FileNameMap fileNameMap = URLConnection.getFileNameMap();
    String contentTypeFor = null;
    try
    {
        contentTypeFor = fileNameMap.getContentTypeFor(URLEncoder.encode(path, "UTF-8"));
    } catch (UnsupportedEncodingException e)
    {
        e.printStackTrace();
    }
    if (contentTypeFor == null)
    {
        contentTypeFor = "application/octet-stream";
    }
    return contentTypeFor;
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
/**
 * Invokes the appropriate probe method to guess a file's content type,
 * and checks that the content type's syntax is valid.
 */
@Override
public final String probeContentType(Path file) throws IOException {
    if (file == null)
        throw new NullPointerException("'file' is null");
    String result = implProbeContentType(file);

    // Fall back to content types property.
    if (result == null) {
        Path fileName = file.getFileName();
        if (fileName != null) {
            FileNameMap fileNameMap = URLConnection.getFileNameMap();
            result = fileNameMap.getContentTypeFor(fileName.toString());
        }
    }

    return (result == null) ? null : parse(result);
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
private String guessMimeType(String path) {
    FileNameMap fileNameMap = URLConnection.getFileNameMap();
    String contentTypeFor = fileNameMap.getContentTypeFor(path);
    if (contentTypeFor == null) {
        contentTypeFor = "application/octet-stream";
    }
    return contentTypeFor;
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
public static String getMimeType(String path) {
    FileNameMap fileNameMap = URLConnection.getFileNameMap();
    String contentTypeFor = fileNameMap.getContentTypeFor(path);
    if (contentTypeFor == null) {
        contentTypeFor = "application/octet-stream";
    }
    return contentTypeFor;
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
/** 根据文件名获取MIME类型 */
public static MediaType guessMimeType(String fileName) {
    FileNameMap fileNameMap = URLConnection.getFileNameMap();
    fileName = fileName.replace("#", "");   //解决文件名中含有#号异常的问题
    String contentType = fileNameMap.getContentTypeFor(fileName);
    if (contentType == null) {
        return HttpParams.MEDIA_TYPE_STREAM;
    }
    return MediaType.parse(contentType);
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
/***
 * try to get file's MediaType
 *
 * @param fileName file's name
 ***/

private String getMimeType(String fileName) {
    FileNameMap fileNameMap = URLConnection.getFileNameMap();
    String contentTypeFor = fileNameMap.getContentTypeFor(fileName);
    if (contentTypeFor == null) {
        contentTypeFor = "application/octet-stream";
    }
    return contentTypeFor;
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
public CCFile(String url){
    this.url = url;

    if (TextUtils.isEmpty(url)){
        this.mimeType = "multipart/form-data;";
    }else {
        FileNameMap fileNameMap = URLConnection.getFileNameMap();
        //url = url.replace("#", "");   //解决文件名中含有#号异常的问题
        String contentType = fileNameMap.getContentTypeFor(url.replace("#", ""));
        if (contentType == null) {
            this.mimeType =  MediaType.parse("application/octet-stream").toString();
        }
        this.mimeType =   MediaType.parse(contentType).toString();
    }
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
public static MediaType guessMimeType(String path) {
    FileNameMap fileNameMap = URLConnection.getFileNameMap();
    path = path.replace("#", "");   //解决文件名中含有#号异常的问题
    String contentType = fileNameMap.getContentTypeFor(path);
    if (contentType == null) {
        contentType = "application/octet-stream";
    }
    return MediaType.parse(contentType);
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
/**
 * 根据文件名获取MIME类型
 */
public static MediaType guessMimeType(String fileName) {
    FileNameMap fileNameMap = URLConnection.getFileNameMap();
    fileName = fileName.replace("#", "");   //解决文件名中含有#号异常的问题
    String contentType = fileNameMap.getContentTypeFor(fileName);
    if (contentType == null) {
        return HttpParams.MEDIA_TYPE_STREAM;
    }
    return MediaType.parse(contentType);
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
private String guessMimeType(String path) {
    FileNameMap fileNameMap = URLConnection.getFileNameMap();
    String contentTypeFor = null;
    try {
        contentTypeFor = fileNameMap.getContentTypeFor(URLEncoder.encode(path, "UTF-8"));
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }
    if (contentTypeFor == null) {
        contentTypeFor = "application/octet-stream";
    }
    return contentTypeFor;
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
/**
 * 获取文件上传使用的RequestBody，MediaType，通过具体文件获取，当获取到null时，使用“text/plain”，作为默认值
 *
 * @param file
 * @return
 */
private static RequestBody getRequestBody(File file) {
    FileNameMap fileNameMap = URLConnection.getFileNameMap();
    String contentTypeFor = fileNameMap.getContentTypeFor(file.getAbsolutePath());
    contentTypeFor = contentTypeFor == null || "".equals(contentTypeFor) ? "text/plain" : contentTypeFor;
    MediaType mediaType = MediaType.parse(contentTypeFor);

    return RequestBody.create(mediaType, file);
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
public static String getFileType(String fn, String defaultType) {
	FileNameMap fNameMap = URLConnection.getFileNameMap();
	String type = fNameMap.getContentTypeFor(fn);
	return type == null ? defaultType : type;
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
public static final String getMimeType(String fileUrl) {
    FileNameMap fileNameMap = URLConnection.getFileNameMap();
    String type = fileNameMap.getContentTypeFor(fileUrl);
    return type;
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
/**
 * 获取文件的Mime类型
 *
 * @param file 需要处理的文件
 * @return 返回文件的mime类型
 * @throws java.io.IOException
 */
public final static String mimeType(String file) throws java.io.IOException {
    FileNameMap fileNameMap = URLConnection.getFileNameMap();
    return fileNameMap.getContentTypeFor(file);
}