ConnectManager网络请求的三层封装（模块－转换－底层）
基于httpclient，java封装一套Android网络请求框架
调用层－数据解析层－底层
##调用层
1 | private void getSystemToken() { |
##数据转化层1
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37/**
* 请求systemToken
*
* @param params
* @param callback
*/
public void getSystemToken(final GetSystemTokenParam params,
final AbstractRequestListener<GetSystemTokenBean> callback) {
exector.execute(new Runnable() {
@Override
public void run() {
try {
String method = params.getParam().getString("method");
String response = HttpConnectionUtil.openUrl(
Constants.SERVER_URL + method, "GET",
params.getParam(),false);
GetSystemTokenBean bean = GetSystemTokenBean.getSystemTokenBean(response);
if (callback != null) {
callback.onComplete(bean);
}
} catch (RuntimeException e) {
e.printStackTrace();
if (callback != null) {
callback.onFault(new CustomError(network_error));
}
} catch (JSONException e) {
e.printStackTrace();
if (callback != null) {
callback.onError(new CustomError(json_error));
}
}
}
});
}
##网络底层1
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48/**
* 发送http请求
*
* @param url
* @param method
* GET 或 POST
* @param params
* @return
*/
public static String openUrl(String url, String method, Bundle params,boolean Token) {
if (method.equals("GET")) {
if (params != null) {
url = url + "?" + encodeUrl(params);
}
}
String response = "";
try {
L.i(method + " URL: " + url);
HttpClient httpClient = HttpConnectionUtil.getNewHttpClient();
HttpGet httpGet = new HttpGet(url);
if(Token==false){
}else{
httpGet.setHeader("systemToken", Constants.SYSTEMTOKEN);
}
//连接超时
httpClient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 20000);
// 读取超时
httpClient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 20000);
HttpResponse resp = httpClient.execute(httpGet);
if (resp.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
L.i(LOG_TAG, "httpGet fail, status code = " + resp.getStatusLine().getStatusCode());
}else{
response = EntityUtils.toString(resp.getEntity());
}
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
}
L.i("LOG_TAG"+response);
return response;
}
#具体封装
##AbstractRequestListener
public abstract class AbstractRequestListener
/**
* 将response请求解析为针对具体请求的bean
*
* @param response
* 请求完成后的响应字符串
* @return
* 若解析成功，返回解析后的对象，否则返回null
*/
@SuppressWarnings("unchecked")
public T parse(String response) {
Class<?> c = this.getGenericType();
try {
Constructor<T> constructor = (Constructor<T>) c.getDeclaredConstructor(String.class);
T result = constructor.newInstance(response);
return result;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* 获取T的类型
* @param
* @return
*/
private Class<?> getGenericType() {
Type genType = getClass().getGenericSuperclass();
if (!(genType instanceof ParameterizedType)) {
return Object.class;
}
Type[] params = ((ParameterizedType) genType).getActualTypeArguments();
if (params.length < 1) {
throw new RuntimeException("Index outof bounds");
}
if (!(params[0] instanceof Class)) {
return Object.class;
}
return (Class<?>) params[0];
}
/**
* 请求完成后以对象形式返回服务器的响应的结果
*
* @param bean
* 服务器返回的响应字符串解析后得到的对象
*
*/
public abstract void onComplete(T bean);
/**
* 服务器返回了错误结果，已经正确的链接上了服务器但有错误如：缺少参数.等
*
* @param customError
*/
public abstract void onError(CustomError customError);
/**
* 在请求期间发生了严重问题（如：网络故障、访问的地址不存在等）
*
* @param fault
*/
public abstract void onFault(CustomError fault);
}
##CustomError1
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57public class CustomError extends RuntimeException {
private static final long serialVersionUID = 1L;
/**
* 错误码
*/
private int mErrorCode;
/** 原始响应URL */
private String mResponse;
public CustomError() {
super();
}
public CustomError(String errorMessage) {
super(errorMessage);
}
public CustomError(int errorCode, String errorMessage, String orgResponse) {
super(errorMessage);
this.mErrorCode = errorCode;
this.mResponse = orgResponse;
}
public String getOrgResponse() {
return mResponse;
}
public int getErrorCode() {
return mErrorCode;
}
@Override
public String toString() {
return "errorCode:" + this.mErrorCode + "\nerrorMessage:"
+ this.getMessage() + "\norgResponse:" + this.mResponse;
}
/**
* 将服务器返回的errorMessage转换成定义的易于理解的字符串
*
* @param errorCode
* 服务器返回的错误代码
* @param errorMessage
* 服务器返回的错误字符串，和错误代码一一对应
* @return
*/
public static String interpretErrorMessage(int errorCode, String errorMessage) {
switch (errorCode)
{
/**
* 错误处理
*/
}
return errorMessage;
}
}
##RequestParam1
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11 */
public abstract class RequestParam {
/**
* 设置请求参数
* @return
*/
public abstract Bundle getParam();
}
##ResponseBean1
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54public abstract class ResponseBean implements Serializable {
public String response;
//
public ResponseBean()
{
}
public ResponseBean(String response) throws JSONException {
// TODO Auto-generated constructor stub
if(response == null || response.equals("") ||response.equals("null"))
throw new JSONException("数据解析异常");
this.response = response;
}
public void setResponse(String response){
this.response = response;
}
public String getResponse() {
return response;
}
/**
* 保存
*/
protected void saveModel()
{
L.i("save_model");
}
/**
* 更新
*/
protected void updateModel()
{
L.i("update_model");
}
/**
* 删除
*/
protected void deleteModel()
{
L.i("delete_model");
}
}
#用法
参见Demo，给别人做的毕业设计。