导入依赖：
implementation 'com.squareup.okhttp3:okhttp:3.4.1'
调用方法：
File file = new File("");HttpParams params = new HttpParams();
params.put("mobile", "22");
params.put("password", 33);
params.put("api_name", "login");
params.put("id",false);
params.put("file",file);
工具类：
/*** @author : LGQ* @date : 2020/04/16 09* @desc :*/public class HttpParams implements Serializable {private static final long serialVersionUID = 7369819159227055048L;public static final MediaType MEDIA_TYPE_PLAIN = MediaType.parse("text/plain;charset=utf-8");public static final MediaType MEDIA_TYPE_JSON = MediaType.parse("application/json;charset=utf-8");public static final MediaType MEDIA_TYPE_STREAM = MediaType.parse("application/octet-stream");public static final boolean IS_REPLACE = true;/** 普通的键值对参数 */public LinkedHashMap<String, List<String>> urlParamsMap;/** 文件的键值对参数 */public LinkedHashMap<String, List<FileWrapper>> fileParamsMap;public HttpParams() {init();}public HttpParams(String key, String value) {init();put(key, value, IS_REPLACE);}public HttpParams(String key, File file) {init();put(key, file);}private void init() {urlParamsMap = new LinkedHashMap<>();fileParamsMap = new LinkedHashMap<>();}public void put(HttpParams params) {if (params != null) {if (params.urlParamsMap != null && !params.urlParamsMap.isEmpty()) urlParamsMap.putAll(params.urlParamsMap);if (params.fileParamsMap != null && !params.fileParamsMap.isEmpty()) fileParamsMap.putAll(params.fileParamsMap);}}public void put(Map<String, String> params, boolean... isReplace) {if (params == null || params.isEmpty()) return;for (Map.Entry<String, String> entry : params.entrySet()) {put(entry.getKey(), entry.getValue(), isReplace);}}public void put(String key, String value, boolean... isReplace) {if (isReplace != null && isReplace.length > 0) {put(key, value, isReplace[0]);} else {put(key, value, IS_REPLACE);}}public void put(String key, int value, boolean... isReplace) {if (isReplace != null && isReplace.length > 0) {put(key, String.valueOf(value), isReplace[0]);} else {put(key, String.valueOf(value), IS_REPLACE);}}public void put(String key, long value, boolean... isReplace) {if (isReplace != null && isReplace.length > 0) {put(key, String.valueOf(value), isReplace[0]);} else {put(key, String.valueOf(value), IS_REPLACE);}}public void put(String key, float value, boolean... isReplace) {if (isReplace != null && isReplace.length > 0) {put(key, String.valueOf(value), isReplace[0]);} else {put(key, String.valueOf(value), IS_REPLACE);}}public void put(String key, double value, boolean... isReplace) {if (isReplace != null && isReplace.length > 0) {put(key, String.valueOf(value), isReplace[0]);} else {put(key, String.valueOf(value), IS_REPLACE);}}public void put(String key, char value, boolean... isReplace) {if (isReplace != null && isReplace.length > 0) {put(key, String.valueOf(value), isReplace[0]);} else {put(key, String.valueOf(value), IS_REPLACE);}}public void put(String key, boolean value, boolean... isReplace) {if (isReplace != null && isReplace.length > 0) {put(key, String.valueOf(value), isReplace[0]);} else {put(key, String.valueOf(value), IS_REPLACE);}}private void put(String key, String value, boolean isReplace) {if (key != null && value != null) {List<String> urlValues = urlParamsMap.get(key);if (urlValues == null) {urlValues = new ArrayList<>();urlParamsMap.put(key, urlValues);}if (isReplace) urlValues.clear();urlValues.add(value);}}public void putUrlParams(String key, List<String> values) {if (key != null && values != null && !values.isEmpty()) {for (String value : values) {put(key, value, false);}}}public void put(String key, File file) {put(key, file, file.getName());}public void put(String key, File file, String fileName) {put(key, file, fileName, guessMimeType(fileName));}/** 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);}public void put(String key, FileWrapper fileWrapper) {if (key != null && fileWrapper != null) {put(key, fileWrapper.file, fileWrapper.fileName, fileWrapper.contentType);}}public void put(String key, File file, String fileName, MediaType contentType) {if (key != null) {List<FileWrapper> fileWrappers = fileParamsMap.get(key);if (fileWrappers == null) {fileWrappers = new ArrayList<>();fileParamsMap.put(key, fileWrappers);}fileWrappers.add(new FileWrapper(file, fileName, contentType));}}public void putFileParams(String key, List<File> files) {if (key != null && files != null && !files.isEmpty()) {for (File file : files) {put(key, file);}}}public void putFileWrapperParams(String key, List<FileWrapper> fileWrappers) {if (key != null && fileWrappers != null && !fileWrappers.isEmpty()) {for (FileWrapper fileWrapper : fileWrappers) {put(key, fileWrapper);}}}public void removeUrl(String key) {urlParamsMap.remove(key);}public void removeFile(String key) {fileParamsMap.remove(key);}public void remove(String key) {removeUrl(key);removeFile(key);}public void clear() {urlParamsMap.clear();fileParamsMap.clear();}/** 文件类型的包装类 */public static class FileWrapper implements Serializable {private static final long serialVersionUID = -2356139899636767776L;public File file;public String fileName;public transient MediaType contentType;public long fileSize;public FileWrapper(File file, String fileName, MediaType contentType) {this.file = file;this.fileName = fileName;this.contentType = contentType;this.fileSize = file.length();}private void writeObject(ObjectOutputStream out) throws IOException {out.defaultWriteObject();out.writeObject(contentType.toString());}private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {in.defaultReadObject();contentType = MediaType.parse((String) in.readObject());}@Overridepublic String toString() {return "FileWrapper{" + //"file=" + file + //", fileName=" + fileName + //", contentType=" + contentType + //", fileSize=" + fileSize +//"}";}}@Overridepublic String toString() {StringBuilder result = new StringBuilder();for (ConcurrentHashMap.Entry<String, List<String>> entry : urlParamsMap.entrySet()) {if (result.length() > 0) result.append("&");result.append(entry.getKey()).append("=").append(entry.getValue());}for (ConcurrentHashMap.Entry<String, List<FileWrapper>> entry : fileParamsMap.entrySet()) {if (result.length() > 0) result.append("&");result.append(entry.getKey()).append("=").append(entry.getValue());}return result.toString();}
}
)
