android内访问restful的应用，由于android受限设备，没法使用框架来处理。因此，简单封装了一个类来进行处理restful访问动作。没啥原理可讲，直接上代码吧。
public class RestClient {
private ArrayList<NameValuePair> params;
private ArrayList<NameValuePair> headers; 
private String url;
private int responseCode;
private String message; 
private String response;
public String getResponse() {
return response;
}
public String getErrorMessage() {
return message;
}
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(ResuestMethod method) throws Exception {
switch (method) {
case GET: {
StringBuffer sBuffer = new StringBuffer();
if (!params.isEmpty()) {
sBuffer.append("?");
for (NameValuePair param : params) {
if (sBuffer.length() > 1) {
sBuffer.append("&"); 
}
sBuffer.append(param.getName()).append("=").append(