如何创建Rest api,以及如何使用android应用程序使用Rest api
如何为我们的网站创建rest api,我想使用rest api将服务器与我的android应用程序连接。如何将这些rest api与我的android应用程序连接,其背后的方法是什么。这里有一个很好的rest api,提供了执行Http POST和GET的基础知识:如何创建Rest api,以及如何使用android应用程序使用Rest api,android,rest,Android,Rest,如何为我们的网站创建rest api,我想使用rest api将服务器与我的android应用程序连接。如何将这些rest api与我的android应用程序连接,其背后的方法是什么。这里有一个很好的rest api,提供了执行Http POST和GET的基础知识: public class RestClient { private ArrayList<NameValuePair> params; private ArrayList<NameValuePair> hea
public class RestClient {
private ArrayList<NameValuePair> params;
private ArrayList<NameValuePair> headers;
private String url;
private String response;
private int responseCode;
public String GetResponse()
{
return response;
}
public int GetResponseCode()
{
return responseCode;
}
public RestClient(String url)
{
this.url = url;
params = new ArrayList<NameValuePair>();
headers = new ArrayList<NameValuePair>();
}
public void AddParam(String name, String value)
{
params.add(new BasicNameValuePair(name, value));
}
public void AddHeader(String name, String value)
{
headers.add(new BasicNameValuePair(name, value));
}
public void Execute(RequestType requestType) throws Exception
{
switch(requestType)
{
case GET:
{
String combinedParams = "";
if (!params.isEmpty())
{
combinedParams += "?";
for (NameValuePair p : params)
{
String paramString = p.getName() + "=" + URLEncoder.encode(p.getValue(),"UTF-8");
if (combinedParams.length() > 1)
combinedParams += "&" + paramString;
else
combinedParams += paramString;
}
}
HttpGet request = new HttpGet(url + combinedParams);
for (NameValuePair h: headers)
request.addHeader(h.getName(),h.getValue());
ExecuteRequest(request, url);
break;
}
case POST:
{
HttpPost request = new HttpPost(url);
for (NameValuePair h : headers)
{
request.addHeader(h.getName(), h.getValue());
}
if(!params.isEmpty()){
request.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
}
ExecuteRequest(request, url);
break;
}
}
}
public void ExecuteRequest(HttpUriRequest request, String url)
{
HttpClient client = new DefaultHttpClient();
HttpResponse httpResponse;
try
{
httpResponse = client.execute(request);
responseCode = httpResponse.getStatusLine().getStatusCode();
HttpEntity entity = httpResponse.getEntity();
if (entity != null)
{
InputStream in = entity.getContent();
response = ConvertStreamToString(in);
in.close();
}
}
catch (ClientProtocolException e) {
client.getConnectionManager().shutdown();
e.printStackTrace();
} catch (IOException e) {
Log.e("REST_CLIENT", "Execute Request: " + e.getMessage());
client.getConnectionManager().shutdown();
e.printStackTrace();
}
}
private String ConvertStreamToString(InputStream in)
{
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder sb = new StringBuilder();
String line = null;
try
{
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
}
catch (IOException e)
{
e.printStackTrace();
}
finally
{
try
{
in.close();
}
catch (IOException e)
{
Log.e("REST_CLIENT", "ConvertStreamToString: " + e.getMessage());
e.printStackTrace();
}
}
return sb.toString();
}
公共类RestClient{
私有数组列表参数;
私有数组列表头;
私有字符串url;
私有字符串响应;
私人内部响应代码;
公共字符串GetResponse()
{
返回响应;
}
public int GetResponseCode()
{
返回响应代码;
}
公共RestClient(字符串url)
{
this.url=url;
params=新的ArrayList();
headers=newarraylist();
}
public void AddParam(字符串名称、字符串值)
{
添加(新的BasicNameValuePair(名称、值));
}
public void AddHeader(字符串名称、字符串值)
{
添加(新的BasicNameValuePair(名称、值));
}
public void Execute(RequestType RequestType)引发异常
{
开关(请求类型)
{
案例获取:
{
字符串组合参数=”;
如果(!params.isEmpty())
{
组合参数+=“?”;
用于(名称值对p:params)
{
字符串paramString=p.getName()+“=”+urlcoder.encode(p.getValue(),“UTF-8”);
如果(combinedParams.length()>1)
组合参数+=“&”+参数字符串;
其他的
combinedParams+=paramString;
}
}
HttpGet请求=新的HttpGet(url+组合参数);
对于(NameValuePair h:Header)
addHeader(h.getName(),h.getValue());
ExecuteRequest(请求、url);
打破
}
个案职位:
{
HttpPost请求=新的HttpPost(url);
对于(NameValuePair h:Header)
{
addHeader(h.getName(),h.getValue());
}
如果(!params.isEmpty()){
setEntity(新的UrlEncodedFormEntity(params,HTTP.UTF_8));
}
ExecuteRequest(请求、url);
打破
}
}
}
public void ExecuteRequest(HttpUriRequest请求,字符串url)
{
HttpClient=new DefaultHttpClient();
HttpResponse HttpResponse;
尝试
{
httpResponse=client.execute(请求);
responseCode=httpResponse.getStatusLine().getStatusCode();
HttpEntity entity=httpResponse.getEntity();
如果(实体!=null)
{
InputStream in=entity.getContent();
响应=ConvertStreamToString(in);
in.close();
}
}
捕获(客户端协议例外e){
client.getConnectionManager().shutdown();
e、 printStackTrace();
}捕获(IOE异常){
Log.e(“REST_客户端”,“执行请求:+e.getMessage());
client.getConnectionManager().shutdown();
e、 printStackTrace();
}
}
私有字符串ConvertStreamToString(InputStream in)
{
BufferedReader reader=新的BufferedReader(新的InputStreamReader(in));
StringBuilder sb=新的StringBuilder();
字符串行=null;
尝试
{
而((line=reader.readLine())!=null){
sb.追加(第+行“\n”);
}
}
捕获(IOE异常)
{
e、 printStackTrace();
}
最后
{
尝试
{
in.close();
}
捕获(IOE异常)
{
Log.e(“REST_客户端”,“ConvertStreamToString:+e.getMessage());
e、 printStackTrace();
}
}
使某人返回字符串();
}
}这里有一个很好的rest api,提供了执行Http POST和GET的基础知识:
public class RestClient {
private ArrayList<NameValuePair> params;
private ArrayList<NameValuePair> headers;
private String url;
private String response;
private int responseCode;
public String GetResponse()
{
return response;
}
public int GetResponseCode()
{
return responseCode;
}
public RestClient(String url)
{
this.url = url;
params = new ArrayList<NameValuePair>();
headers = new ArrayList<NameValuePair>();
}
public void AddParam(String name, String value)
{
params.add(new BasicNameValuePair(name, value));
}
public void AddHeader(String name, String value)
{
headers.add(new BasicNameValuePair(name, value));
}
public void Execute(RequestType requestType) throws Exception
{
switch(requestType)
{
case GET:
{
String combinedParams = "";
if (!params.isEmpty())
{
combinedParams += "?";
for (NameValuePair p : params)
{
String paramString = p.getName() + "=" + URLEncoder.encode(p.getValue(),"UTF-8");
if (combinedParams.length() > 1)
combinedParams += "&" + paramString;
else
combinedParams += paramString;
}
}
HttpGet request = new HttpGet(url + combinedParams);
for (NameValuePair h: headers)
request.addHeader(h.getName(),h.getValue());
ExecuteRequest(request, url);
break;
}
case POST:
{
HttpPost request = new HttpPost(url);
for (NameValuePair h : headers)
{
request.addHeader(h.getName(), h.getValue());
}
if(!params.isEmpty()){
request.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
}
ExecuteRequest(request, url);
break;
}
}
}
public void ExecuteRequest(HttpUriRequest request, String url)
{
HttpClient client = new DefaultHttpClient();
HttpResponse httpResponse;
try
{
httpResponse = client.execute(request);
responseCode = httpResponse.getStatusLine().getStatusCode();
HttpEntity entity = httpResponse.getEntity();
if (entity != null)
{
InputStream in = entity.getContent();
response = ConvertStreamToString(in);
in.close();
}
}
catch (ClientProtocolException e) {
client.getConnectionManager().shutdown();
e.printStackTrace();
} catch (IOException e) {
Log.e("REST_CLIENT", "Execute Request: " + e.getMessage());
client.getConnectionManager().shutdown();
e.printStackTrace();
}
}
private String ConvertStreamToString(InputStream in)
{
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder sb = new StringBuilder();
String line = null;
try
{
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
}
catch (IOException e)
{
e.printStackTrace();
}
finally
{
try
{
in.close();
}
catch (IOException e)
{
Log.e("REST_CLIENT", "ConvertStreamToString: " + e.getMessage());
e.printStackTrace();
}
}
return sb.toString();
}
公共类RestClient{
私有数组列表参数;
私有数组列表头;
私有字符串url;
私有字符串响应;
私人内部响应代码;
公共字符串GetResponse()
{
返回响应;
}
public int GetResponseCode()
{
返回响应代码;
}
公共RestClient(字符串url)
{
this.url=url;
params=新的ArrayList();
headers=newarraylist();
}
public void AddParam(字符串名称、字符串值)
{
添加(新的BasicNameValuePair(名称、值));
}
public void AddHeader(字符串名称、字符串值)
{
添加(新的BasicNameValuePair(名称、值));
}
public void Execute(RequestType RequestType)引发异常
{
开关(请求类型)
{
案例获取:
{
字符串组合参数=”;
如果(!params.isEmpty())
{
组合参数+=“?”;
用于(名称值对p:params)
{
字符串paramString=p.getName()+“=”+urlcoder.encode(p.getValue(),“UTF-8”);
如果(combinedParams.length()>1)
组合参数+=“&”+参数字符串;
其他的
combinedParams+=paramString;
}
}
HttpGet请求=新的HttpGet(url+组合参数);
对于(NameValuePair h:Header)
addHeader(h.getName(),h.getValue());
ExecuteRequest(请求、url);
打破
}
个案职位:
{
HttpPost请求=新的HttpPost(url);
对于(NameValuePair h:Header)
{
addHeader(h.getName(),h.getValue());
}
如果(!params.isEmpty()){
setEntity(新的UrlEncodedFormEntity(params,HTTP.UTF_8));
}
ExecuteRequest(请求、url);
打破
}
}
}
public void ExecuteRequest(HttpUriRequest请求,字符串url)
{
HttpClient=new DefaultHttpClient();
HttpResponse HttpResponse;
尝试
{
httpResponse=client.execute(请求);
responseCode=httpResponse.getStatusLine().getSta