編輯：關於Android編程
這篇博客是來了解下，頭像上傳如何實現，我們httpurlconnection和Volley來實現
首先了解下布局文件
我們先看httpurl如何實現頭像上傳的？
頭像上傳其實本質上就是將某個需要上傳的圖片轉為byte[]數組，然後在通過Base64.encodeToString轉為字符串
首先添加頭部體部分，用來生成json字符串，這裡說一下，我們公司是直接拼接的方式，當然你也可以用fastson、Gson、JsonObject來生成json格式
/**
* 生成數據上傳的頭部，需要數據國鼎id，應用類型，操作系統類型
*/
private void addUserInfosHead() {
headParameters.clear();
headParameters.add("godin_id", "0e6ad2a71e31752deb69d6e8c9eabe76");
headParameters.add("app_type", "3");
headParameters.add("os_type", "android");
}
/**
* 生成數據上傳的數據包體
*/
private void addRequestBodyInfos() {
bodyParameters.clear();
bodyParameters.add("photo_type", "jpeg");
bodyParameters.add("context",
Base64.encodeToString(bitmap2Bytes, Base64.DEFAULT));
bodyParameters.add("nickname", nick_name.getText().toString());
}
樓上的Base64.encodeToString(bitmap2Bytes, Base64.DEFAULT)就是將圖片的二進制文件轉為字符串
我們公司的封裝代碼中，以下代碼就是生成json格式
requestion = ProtocolUtil.buildJSONPacketBody(headParameters,
bodyParameters);
看看Json格式把：
![這裡寫圖片描述](https://www.android5.online/Android/UploadFiles_5356/201702/2017022409171912.png "\")
然後就是點擊上傳即可，我用的網絡請求是https的，所以在initHttps中進行一些證書的認證之類的，然後就打開網絡鏈接conn,然後就獲取相應碼即可
initHttps();
URL url = new URL(urlString);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(5000);
conn.setDoOutput(true);//設置允許輸出
conn.setRequestMethod("POST");
conn.setRequestProperty("User-Agent", "Fiddler");
conn.setRequestProperty("Content-Type", "application/json");
conn.setRequestProperty("Charset", "utf-8");
OutputStream os = conn.getOutputStream();
os.write(content.getBytes());
os.close();
/*服務器返回的響應碼*/
int code = conn.getResponseCode();
if (code == 200) {
Log.d("Evelyn", "response code:" + code);
}
conn.disconnect();
最後看返回結果即可
![這裡寫圖片描述](https://www.android5.online/Android/UploadFiles_5356/201702/2017022409171925.png "\")
我們再看看Volley如何實現頭像上傳的？
之前的幾篇博客中，有對volley、Gson的封裝使用，本篇博客就簡單使用即可
StringRequest request = new StringRequest(Method.POST,
url,
new Listener() {
@Override
public void onResponse(String arg0) {
Log.e("TAG", "volley onResponse--->>" + arg0);
/**
* {"Response":{"head":{"statuscode":"000000",
* "statusmsg":"sucess"}}}
*/
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError arg0) {
}
}) {
@Override
public byte[] getBody() throws AuthFailureError {
return requestStringBytes;
}
@Override
public String getBodyContentType() {
return String.format(
"application/x-www-form-urlencoded; charset=%s",
"utf-8");
}
@Override
public Map getHeaders() throws AuthFailureError {
Map headers = new HashMap();
headers.put("Charset", "UTF-8");
headers.put("Content-Type", "application/x-javascript");
headers.put("Accept-Encoding", "gzip,deflate");
return headers;
}
};
// 設置標簽
queue.add(request);
queue.start();
代碼也很簡單；
getBodyContentType這裡是設置請求的東東的格式化
getHeaders這裡也是設置一些需要的參數（我當時也是搜的百度，麼有這些設置，無法相應正確返回值）
@Override
public byte[] getBody() throws AuthFailureError {
return requestStringBytes;
}
這個就是需要的body[] 我們就用httpurlconnect中的那個json字符串即可
requestStringBytes = requestion.getBytes("UTF-8");
然後一樣接受返回值即可，如下截圖是本公司返回的json格式
![這裡寫圖片描述](https://www.android5.online/Android/UploadFiles_5356/201702/2017022409171911.png "\")
////////////////////////////////以下是代碼區//////////////////////////////////////////////////////////////
activity_main.xml
MainActivity這個類中我將url屏蔽了，因為是公司上線項目，不方便，呵呵
package com.example.uploadphoto2server;
import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Map;
import android.app.Activity;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Base64;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import com.android.volley.AuthFailureError;
import com.android.volley.Request.Method;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.Response.Listener;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;
import com.google.gson.Gson;
public class MainActivity extends Activity implements OnClickListener {
TextView nick_name;
ImageView image;
Button upload, uploadByvolley;
private JsonParameters headParameters;
private JsonParameters bodyParameters;
private DataToServer userInfosToServer;
private byte[] bitmap2Bytes;
public RequestQueue queue;
private String requestion;
private byte[] requestStringBytes;
String url = "https://10.0.5.48:7771/xxxxxx";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//volley隊列
queue = Volley.newRequestQueue(this);
//昵稱
nick_name = (TextView) findViewById(R.id.nick_name);
//頭像
image = (ImageView) findViewById(R.id.image);
//httpurlconnection上傳頭像、昵稱
upload = (Button) findViewById(R.id.upload);
//volley上傳頭像、昵稱
uploadByvolley = (Button) findViewById(R.id.uploadByvolley);
upload.setOnClickListener(this);
uploadByvolley.setOnClickListener(this);
//用來封裝 請求頭體
headParameters = new JsonParameters();
bodyParameters = new JsonParameters();
/**
* 獲取頭像的二進制碼文件
*/
Resources res = getResources();
Bitmap bmp = BitmapFactory.decodeResource(res, R.drawable.ic_launcher);
bitmap2Bytes = Bitmap2Bytes(bmp);
/*
* 添加請求頭，請求體----這是公司的方式
*/
addUserInfosHead();
addRequestBodyInfos();
/**
* 生成json格式的字符串
*/
requestion = ProtocolUtil.buildJSONPacketBody(headParameters,
bodyParameters);
Log.i("Evelyn", "requestion-->>"+requestion);
/**
* volley需要的body[]
*/
requestStringBytes = null;
try {
requestStringBytes = requestion.getBytes("UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
public byte[] Bitmap2Bytes(Bitmap bm) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.PNG, 100, baos);
return baos.toByteArray();
}
@Override
public void onClick(View v) {
// upload image to server
if (v.getId() == R.id.uploadByvolley) {
StringRequest request = new StringRequest(Method.POST,
url,
new Listener() {
@Override
public void onResponse(String arg0) {
Log.e("TAG", "volley onResponse--->>" + arg0);
/**
* {"Response":{"head":{"statuscode":"000000",
* "statusmsg":"sucess"}}}
*/
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError arg0) {
}
}) {
@Override
public byte[] getBody() throws AuthFailureError {
return requestStringBytes;
}
@Override
public String getBodyContentType() {
return String.format(
"application/x-www-form-urlencoded; charset=%s",
"utf-8");
}
@Override
public Map getHeaders() throws AuthFailureError {
Map headers = new HashMap();
headers.put("Charset", "UTF-8");
headers.put("Content-Type", "application/x-javascript");
headers.put("Accept-Encoding", "gzip,deflate");
return headers;
}
};
// 設置標簽
queue.add(request);
queue.start();
}
if (v.getId() == R.id.upload) {
// 上傳用戶信息到後端服務器
userInfosToServer = new DataToServer(requestion, url);
new Thread() {
@Override
public void run() {
userInfosToServer.uploadFile();
}
}.start();
}
}
/**
* 生成數據上傳的頭部，需要數據國鼎id，應用類型，操作系統類型
*/
private void addUserInfosHead() {
headParameters.clear();
headParameters.add("godin_id", "0e6ad2a71e31752deb69d6e8c9eabe76");
headParameters.add("app_type", "3");
headParameters.add("os_type", "android");
}
/**
* 生成數據上傳的數據包體
*/
private void addRequestBodyInfos() {
bodyParameters.clear();
bodyParameters.add("photo_type", "jpeg");
bodyParameters.add("context",
Base64.encodeToString(bitmap2Bytes, Base64.DEFAULT));
bodyParameters.add("nickname", nick_name.getText().toString());
}
}
DataToServer
package com.example.uploadphoto2server;
import java.io.IOException;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.Socket;
import java.net.URL;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import org.apache.http.conn.ssl.SSLSocketFactory;
import android.util.Log;
/**
* Created by Evelyn on 2016/7/5.
*/
public class DataToServer {
//private String urlString = "https://www.imlianxi.com:7771/ExceptionLog";
private String urlString;
private String content = null;
public DataToServer(String requestJson, String path) {
this.content = requestJson;
this.urlString = path;
}
/* 上傳文件至Server的方法 */
public void uploadFile() {
try {
initHttps();
URL url = new URL(urlString);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(5000);
conn.setDoOutput(true);//設置允許輸出
conn.setRequestMethod("POST");
conn.setRequestProperty("User-Agent", "Fiddler");
conn.setRequestProperty("Content-Type", "application/json");
conn.setRequestProperty("Charset", "utf-8");
OutputStream os = conn.getOutputStream();
os.write(content.getBytes());
os.close();
/*服務器返回的響應碼*/
int code = conn.getResponseCode();
if (code == 200) {
Log.d("Evelyn", "response code:" + code);
}
conn.disconnect();
} catch (Exception e) {
e.printStackTrace();
}
}
private void initHttps() {
try {
KeyStore trustStore = KeyStore.getInstance(KeyStore
.getDefaultType());
trustStore.load(null, null);
SSLSocketFactoryEx sf = new SSLSocketFactoryEx(trustStore);
HttpsURLConnection.setDefaultSSLSocketFactory(sf.getSSLContext()
.getSocketFactory());
HttpsURLConnection
.setDefaultHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
} catch (Exception e) {
}
}
static class SSLSocketFactoryEx extends SSLSocketFactory {
SSLContext sslContext = SSLContext.getInstance("TLS");
public SSLSocketFactoryEx(KeyStore truststore)
throws NoSuchAlgorithmException, KeyManagementException,
KeyStoreException, UnrecoverableKeyException {
super(truststore);
TrustManager tm = new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
@Override
public void checkClientTrusted(
java.security.cert.X509Certificate[] chain,
String authType)
throws java.security.cert.CertificateException {
}
@Override
public void checkServerTrusted(
java.security.cert.X509Certificate[] chain,
String authType)
throws java.security.cert.CertificateException {
}
};
sslContext.init(null, new TrustManager[] { tm }, null);
}
@Override
public Socket createSocket(Socket socket, String host, int port,
boolean autoClose) throws IOException, UnknownHostException {
return sslContext.getSocketFactory().createSocket(socket, host,
port, autoClose);
}
@Override
public Socket createSocket() throws IOException {
return sslContext.getSocketFactory().createSocket();
}
public SSLContext getSSLContext() {
return sslContext;
}
}
}
ProtocolUtil
package com.example.uploadphoto2server;
import android.annotation.SuppressLint;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
/**
* simple tools to handle protocol for apps.
*/
public class ProtocolUtil {
public static final String COLON = ": ";
public static final String LEFT_ANGLE_BRACKET = "{";
public static final String RIGHT_ANGLE_BRACKET = "}";
public static String buildJSONPacketBody(String[] headKey, Object[] headValue,
String[] bodyKey, Object[] bodyValue) {
if (((headKey == null || headKey.length == 0) && (headValue == null || headValue.length == 0)
&& (bodyKey == null || bodyKey.length == 0) && (bodyValue == null || bodyValue.length == 0))) {
throw new IllegalArgumentException();
}
StringBuffer sb = new StringBuffer(LEFT_ANGLE_BRACKET + "\r\n");
sb.append("\t\"Request\"" + COLON + LEFT_ANGLE_BRACKET + "\r\n");
if (headKey != null) {
sb.append("\t\t\"head\"" + COLON + LEFT_ANGLE_BRACKET + "\r\n");
for (int i = 0; i < headKey.length; i++) {
sb.append("\t\t\t\"" + headKey[i].toLowerCase() + "\"" + COLON)
.append(JSONUtil.object2json(headValue[i]));
if(i != headKey.length -1) {
sb.append(",");
}
sb.append("\r\n");
}
sb.append("\t\t" + RIGHT_ANGLE_BRACKET+ ",\r\n");
}
if (bodyKey != null) {
sb.append("\t\t\"body\"" + COLON + LEFT_ANGLE_BRACKET + "\r\n");
for (int i = 0; i < bodyKey.length; i++) {
if (bodyKey[i] == null || bodyKey[i].equals("")) {
continue;
}
sb.append("\t\t\t\"" + bodyKey[i].toLowerCase() + "\"" + COLON)
.append(JSONUtil.object2json(bodyValue[i]));
if(i != bodyKey.length -1) {
sb.append(",");
}
sb.append("\r\n");
}
sb.append("\t\t" + RIGHT_ANGLE_BRACKET+ "\r\n");
}
sb.append("\t" + RIGHT_ANGLE_BRACKET + "\r\n");
sb.append(RIGHT_ANGLE_BRACKET);
clearObjectArray(headKey, headValue, bodyKey, bodyValue);
return sb.toString();
}
private static void clearObjectArray(String[] hk, Object[] hv, String[] bk, Object[] bv) {
if (hk != null && hv != null) {
for (int i = 0; i < hk.length; i++) {
hk[i] = null;
hv[i] = null;
}
}
hk = null;
hv = null;
if (bk != null && bv != null) {
for (int i = 0; i < bk.length; i++) {
bk[i] = null;
bv[i] = null;
}
}
bk = null;
bv = null;
}
public static String buildJSONPacketBody(JsonParameters headValues,
JsonParameters bodyValues) {
if ((headValues != null && !headValues.validate())
|| (bodyValues != null && !bodyValues.validate())) {
throw new IllegalArgumentException();
}
StringBuffer sb = new StringBuffer(LEFT_ANGLE_BRACKET + "\r\n");
sb.append("\t\"Request\"" + COLON + LEFT_ANGLE_BRACKET + "\r\n");
sb.append("\t\t\"head\"" + COLON + LEFT_ANGLE_BRACKET + "\r\n");
for (int i = 0; i < headValues.size(); i++) {
sb.append(
"\t\t\t\"" + headValues.getKey(i).toLowerCase() + "\""
+ COLON).append(
JSONUtil.object2json(headValues.getValue(headValues
.getKey(i))));
if (i != headValues.size() - 1) {
sb.append(",");
}
sb.append("\r\n");
}
sb.append("\t\t" + RIGHT_ANGLE_BRACKET + ",\r\n");
sb.append("\t\t\"body\"" + COLON + LEFT_ANGLE_BRACKET + "\r\n");
for (int i = 0; i < bodyValues.size(); i++) {
sb.append(
"\t\t\t\"" + bodyValues.getKey(i).toLowerCase() + "\""
+ COLON).append(
JSONUtil.object2json(bodyValues.getValue(bodyValues
.getKey(i))));
if (i != bodyValues.size() - 1) {
sb.append(",");
}
sb.append("\r\n");
}
sb.append("\t\t" + RIGHT_ANGLE_BRACKET + "\r\n");
sb.append("\t" + RIGHT_ANGLE_BRACKET + "\r\n");
sb.append(RIGHT_ANGLE_BRACKET);
headValues.clear();
bodyValues.clear();
return sb.toString();
}
}
JSONUtil
package com.example.uploadphoto2server;
import java.lang.reflect.Field;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import com.google.gson.Gson;
public class JSONUtil {
/** 對象轉換為json */
public static String object2json(Object obj) {
StringBuilder json = new StringBuilder();
if (obj == null) {
json.append("\"\"");
} else if (obj instanceof String || obj instanceof Integer || obj instanceof Float || obj instanceof Boolean
|| obj instanceof Short || obj instanceof Double || obj instanceof Long || obj instanceof BigDecimal
|| obj instanceof BigInteger || obj instanceof Byte) {
json.append("\"").append(string2json(obj.toString())).append("\"");
} else if (obj instanceof Object[]) {
json.append(array2json((Object[]) obj));
} else if (obj instanceof List) {
json.append(list2json((List) obj));
} else if (obj instanceof Map) {
json.append(map2json((Map) obj));
} else if (obj instanceof Set) {
json.append(set2json((Set) obj));
} else {
json.append(bean2json(obj));
}
return json.toString();
}
/** 對象轉換為json */
public static String bean2json(Object bean) {
Gson gson = new Gson();
return gson.toJson(bean);
}
/** List轉換為json */
public static String list2json(List list) {
StringBuilder json = new StringBuilder();
json.append("[");
if (list != null && list.size() > 0) {
for (Object obj : list) {
json.append(object2json(obj));
json.append(",");
}
json.setCharAt(json.length() - 1, ']');
} else {
json.append("]");
}
return json.toString();
}
/** 數組轉換為json */
public static String array2json(Object[] array) {
StringBuilder json = new StringBuilder();
json.append("[");
if (array != null && array.length > 0) {
for (Object obj : array) {
json.append(object2json(obj));
json.append(",");
}
json.setCharAt(json.length() - 1, ']');
} else {
json.append("]");
}
return json.toString();
}
/** map轉換為json */
public static String map2json(Map map) {
StringBuilder json = new StringBuilder();
json.append("{");
if (map != null && map.size() > 0) {
for (Object key : map.keySet()) {
json.append(object2json(key));
json.append(":");
json.append(object2json(map.get(key)));
json.append(",");
}
json.setCharAt(json.length() - 1, '}');
} else {
json.append("}");
}
return json.toString();
}
/** set轉換為json */
public static String set2json(Set set) {
StringBuilder json = new StringBuilder();
json.append("[");
if (set != null && set.size() > 0) {
for (Object obj : set) {
json.append(object2json(obj));
json.append(",");
}
json.setCharAt(json.length() - 1, ']');
} else {
json.append("]");
}
return json.toString();
}
public static String string2json(String s) {
if (s == null)
return "";
StringBuilder sb = new StringBuilder();
for (int i = 0; i < s.length(); i++) {
char ch = s.charAt(i);
switch (ch) {
case '"':
sb.append("\\\"");
break;
case '\\':
sb.append("\\\\");
break;
case '\b':
sb.append("\\b");
break;
case '\f':
sb.append("\\f");
break;
case '\n':
sb.append("\\n");
break;
case '\r':
sb.append("\\r");
break;
case '\t':
sb.append("\\t");
break;
case '/':
sb.append("\\/");
break;
default:
if (ch >= '\u0000' && ch <= '\u001F') {
String ss = Integer.toHexString(ch);
sb.append("\\u");
for (int k = 0; k < 4 - ss.length(); k++) {
sb.append('0');
}
sb.append(ss.toUpperCase());
} else {
sb.append(ch);
}
}
}
return sb.toString();
}
/**
* 對象轉map
*
* @param obj
* @return
*/
public static Map objToMap(Object obj) {
Map map = new HashMap();
try {
/*
* BeanInfo beanInfo = Introspector.getBeanInfo(obj.getClass());
* PropertyDescriptor[] propertyDescriptors = beanInfo
* .getPropertyDescriptors(); for (PropertyDescriptor property :
* propertyDescriptors) { String key = property.getName(); //
* 過濾class屬性 if (!key.equals("class")) { // 得到property對應的getter方法
* Method getter = property.getReadMethod(); Object value =
* getter.invoke(obj); map.put(key, value); } }
*/
Field[] fields = obj.getClass().getDeclaredFields();
for (Field field : fields) {
String key = field.getName();
boolean accessFlag = field.isAccessible();
field.setAccessible(true);
Object val = field.get(obj);
if (val == null) {
val = "";
}
map.put(key, val);
field.setAccessible(accessFlag);
}
} catch (Exception e) {
e.printStackTrace();
}
return map;
}
}
JsonParameters
package com.example.uploadphoto2server;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class JsonParameters {
private List list = null;
private Map map = null;
public JsonParameters() {
list = new ArrayList();
map = new HashMap();
}
public void add(String key, Object value) {
if(list.contains(key)){
list.remove(key);
}
list.add(key);
map.put(key, value);
}
public String getKey(int id) {
return list.get(id);
}
public Object getValue(String key) {
return map.get(key);
}
public int size(){
return list.size();
}
public boolean validate(){
return list.size() == map.size();
}
public void clear(){
list.clear();
map.clear();
//list = null;
//map = null;
}
}
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