版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/u013776188/article/details/77878454
一、POST与GET的区别:
1、GET是从服务器上获取数据,POST是向服务器传送数据。
2、在客户端, GET方式在通过URL提交数据,数据在URL中可以看到;POST方式,数据放置在HTML HEADER内提交。
3、对于GET方式,服务器端用Request.QueryString获取变量的值,对于POST方式,服务器端用Request.Form获取提交的数。
4、GET方式提交的数据最多只能有1024字节,而POST则没有此限制。
5、安全性问题。正如在(2)中提到,使用 GET 的时候,参数会显示在地址栏上,而 POST 不会。所以,如果这些数据是中文数据而且是非敏感数据,那么使用 GET ;如果用户输入的数据不是中文字符而且包含敏感数据,那么还是使用 POST为好。
二、Java中的Http编程主要有两种
1、标准的Java接口
2、标准的Apache接口
三、标准的Java接口编程
1、GET方式
- import java.io.ByteArrayOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.OutputStream;
- import java.net.HttpURLConnection;
- import java.net.URL;
- import java.util.HashMap;
- import java.util.Map;
- public class http_get1 {
- // public static final String path =
- // "http://192.168.137.103:8080/MyHttp/servlet/LoginAction";
- public static final String path = "http://localhost:8080/MyHttp/servlet/LoginAction";
- public static String getStringFromStream(InputStream is) {
- String str = "";
- ByteArrayOutputStream bos = new ByteArrayOutputStream();
- int len = 0;
- byte[] data = new byte[1024];
- if(is!=null){
- try {
- while ((len = is.read(data)) != -1) {
- bos.write(data, 0, len);
- }
- str = new String(bos.toByteArray(), "utf-8");
- } catch (IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- return str;
- }
- public static InputStream useGetMethod(Map<String, String> map,
- String encode) {
- InputStream is = null;
- StringBuffer sb = new StringBuffer(path);
- sb.append("?");
- if (map != null && !map.isEmpty()) {
- for (Map.Entry<String, String> entry : map.entrySet()) {
- sb.append(entry.getKey()).append("=").append(entry.getValue())
- .append("&");
- }
- sb.deleteCharAt(sb.length() - 1);
- System.out.println(sb.toString());
- URL url = null;
- OutputStream os = null;
- try {
- url = new URL(sb.toString());
- if (url != null) {
- HttpURLConnection con = (HttpURLConnection) url
- .openConnection();
- con.setRequestMethod("GET");
- con.setConnectTimeout(3000);
- con.setDoInput(true);
- con.setDoOutput(true);
- os = con.getOutputStream();
- os.write(sb.toString().getBytes(encode));
- os.close();
- if (con.getResponseCode() == 200) {
- is = con.getInputStream();
- }
- }
- } catch (Exception e) {
- }
- }
- return is;
- }
- public static void main(String[] args) {
- // TODO Auto-generated method stub
- Map<String, String> map = new HashMap<String, String>();
- map.put("username", "admin");
- map.put("password", "1243");
- String str = getStringFromStream(useGetMethod(map, "utf-8"));
- System.out.println(str);
- }
- }
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
public class http_get1 {
// public static final String path =
// "http://192.168.137.103:8080/MyHttp/servlet/LoginAction";
public static final String path = "http://localhost:8080/MyHttp/servlet/LoginAction";
public static String getStringFromStream(InputStream is) {
String str = "";
ByteArrayOutputStream bos = new ByteArrayOutputStream();
int len = 0;
byte[] data = new byte[1024];
if(is!=null){
try {
while ((len = is.read(data)) != -1) {
bos.write(data, 0, len);
}
str = new String(bos.toByteArray(), "utf-8");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return str;
}
public static InputStream useGetMethod(Map<String, String> map,
String encode) {
InputStream is = null;
StringBuffer sb = new StringBuffer(path);
sb.append("?");
if (map != null && !map.isEmpty()) {
for (Map.Entry<String, String> entry : map.entrySet()) {
sb.append(entry.getKey()).append("=").append(entry.getValue())
.append("&");
}
sb.deleteCharAt(sb.length() - 1);
System.out.println(sb.toString());
URL url = null;
OutputStream os = null;
try {
url = new URL(sb.toString());
if (url != null) {
HttpURLConnection con = (HttpURLConnection) url
.openConnection();
con.setRequestMethod("GET");
con.setConnectTimeout(3000);
con.setDoInput(true);
con.setDoOutput(true);
os = con.getOutputStream();
os.write(sb.toString().getBytes(encode));
os.close();
if (con.getResponseCode() == 200) {
is = con.getInputStream();
}
}
} catch (Exception e) {
}
}
return is;
}
public static void main(String[] args) {
// TODO Auto-generated method stub
Map<String, String> map = new HashMap<String, String>();
map.put("username", "admin");
map.put("password", "1243");
String str = getStringFromStream(useGetMethod(map, "utf-8"));
System.out.println(str);
}
}
2、POST方式
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.OutputStream;
- import java.net.HttpURLConnection;
- import java.net.MalformedURLException;
- import java.net.URL;
- import java.util.HashMap;
- import java.util.Map;
- public class http_post1 {
- // 使用POST请求与GET请求的区别就是POST请求不需要封装请求路径,只需要封装请求参数
- public static InputStream usePostMethod(Map<String, String> map,
- String encode) {
- StringBuffer buffer = new StringBuffer();
- InputStream is = null;
- OutputStream os = null;
- if (map != null && !map.isEmpty()) {
- for (Map.Entry<String, String> entry : map.entrySet()) {
- try {
- buffer.append(entry.getKey()).append("=")
- .append(entry.getValue())
- // .append(URLEncoder.encode(entry.getValue(),
- // encode))
- .append("&");
- } catch (Exception e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- buffer.deleteCharAt(buffer.length() - 1);
- System.out.println(buffer.toString());
- }
- try {
- URL url = new URL(http_get1.path);
- if (url != null) {
- HttpURLConnection con = (HttpURLConnection) url
- .openConnection();
- con.setDoInput(true);
- con.setDoOutput(true);
- con.setRequestMethod("POST");
- con.setConnectTimeout(3000);
- byte[] tdata = buffer.toString().getBytes();
- // con.setRequestProperty("Content-Type",
- // "application/x-www-form-urlencoded");
- // con.setRequestProperty("Content-Length",
- // String.valueOf(tdata.length));
- os = con.getOutputStream();
- os.write(tdata);
- os.close();
- if (con.getResponseCode() == 200) {
- is = con.getInputStream();
- }
- }
- } catch (MalformedURLException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- } catch (IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- return is;
- }
- public static void main(String[] args) {
- Map<String, String> map = new HashMap<String, String>();
- map.put("username", "admin");
- map.put("password", "123");
- System.out.println(http_get1.getStringFromStream(usePostMethod(map,
- "utf-8")));
- }
- }
import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import java.util.HashMap; import java.util.Map; public class http_post1 { // 使用POST请求与GET请求的区别就是POST请求不需要封装请求路径,只需要封装请求参数 public static InputStream usePostMethod(Map<String, String> map, String encode) { StringBuffer buffer = new StringBuffer(); InputStream is = null; OutputStream os = null; if (map != null && !map.isEmpty()) { for (Map.Entry<String, String> entry : map.entrySet()) { try { buffer.append(entry.getKey()).append("=") .append(entry.getValue()) // .append(URLEncoder.encode(entry.getValue(), // encode)) .append("&"); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } buffer.deleteCharAt(buffer.length() - 1); System.out.println(buffer.toString()); } try { URL url = new URL(http_get1.path); if (url != null) { HttpURLConnection con = (HttpURLConnection) url .openConnection(); con.setDoInput(true); con.setDoOutput(true); con.setRequestMethod("POST"); con.setConnectTimeout(3000); byte[] tdata = buffer.toString().getBytes(); // con.setRequestProperty("Content-Type", // "application/x-www-form-urlencoded"); // con.setRequestProperty("Content-Length", // String.valueOf(tdata.length)); os = con.getOutputStream(); os.write(tdata); os.close(); if (con.getResponseCode() == 200) { is = con.getInputStream(); } } } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return is; } public static void main(String[] args) { Map<String, String> map = new HashMap<String, String>(); map.put("username", "admin"); map.put("password", "123"); System.out.println(http_get1.getStringFromStream(usePostMethod(map, "utf-8"))); } }
四、Apache接口
- import java.io.InputStream;
- import java.util.ArrayList;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
- import org.apache.http.HttpResponse;
- import org.apache.http.NameValuePair;
- import org.apache.http.client.entity.UrlEncodedFormEntity;
- import org.apache.http.client.methods.HttpPost;
- import org.apache.http.impl.client.DefaultHttpClient;
- import org.apache.http.message.BasicNameValuePair;
- public class http_myapache {
- public static InputStream useApacheMethod(Map<String, String> map,
- String encode) {
- InputStream is = null;
- List<NameValuePair> list = new ArrayList<NameValuePair>();
- for (Map.Entry<String, String> entry : map.entrySet()) {
- list.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
- }
- try {
- // 封装请求参数
- UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, encode);
- // 设置请求参数
- HttpPost post = new HttpPost(http_get1.path);
- post.setEntity(entity);
- // 执行请求
- DefaultHttpClient client = new DefaultHttpClient();
- HttpResponse response = client.execute(post);
- // 获取状态码
- if (response.getStatusLine().getStatusCode() == 200) {
- is = response.getEntity().getContent();
- }
- } catch (Exception e) {
- // TODO: handle exception
- }
- return is;
- }
- public static void main(String[] args) {
- Map<String, String> map = new HashMap<String, String>();
- map.put("username", "admin");
- map.put("password", "123");
- System.out.println(http_get1.getStringFromStream(useApacheMethod(map,
- "utf-8")));
- }
- }
import java.io.InputStream; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; public class http_myapache { public static InputStream useApacheMethod(Map<String, String> map, String encode) { InputStream is = null; List<NameValuePair> list = new ArrayList<NameValuePair>(); for (Map.Entry<String, String> entry : map.entrySet()) { list.add(new BasicNameValuePair(entry.getKey(), entry.getValue())); } try { // 封装请求参数 UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, encode); // 设置请求参数 HttpPost post = new HttpPost(http_get1.path); post.setEntity(entity); // 执行请求 DefaultHttpClient client = new DefaultHttpClient(); HttpResponse response = client.execute(post); // 获取状态码 if (response.getStatusLine().getStatusCode() == 200) { is = response.getEntity().getContent(); } } catch (Exception e) { // TODO: handle exception } return is; } public static void main(String[] args) { Map<String, String> map = new HashMap<String, String>(); map.put("username", "admin"); map.put("password", "123"); System.out.println(http_get1.getStringFromStream(useApacheMethod(map, "utf-8"))); } }
总结:
对于普通的Http编程可以选择GET方式或者POST方式,但对于更高要求的HTTP编程,Apache提供 的标准接口则更为灵活。
附Apache编程的JAR包和XMLPull解析时用到的JAR包:
Apache编程时用到的JAR包:
XMLPull解析时用到的JAR包:
一、POST与GET的区别:
1、GET是从服务器上获取数据,POST是向服务器传送数据。
2、在客户端, GET方式在通过URL提交数据,数据在URL中可以看到;POST方式,数据放置在HTML HEADER内提交。
3、对于GET方式,服务器端用Request.QueryString获取变量的值,对于POST方式,服务器端用Request.Form获取提交的数。
4、GET方式提交的数据最多只能有1024字节,而POST则没有此限制。
5、安全性问题。正如在(2)中提到,使用 GET 的时候,参数会显示在地址栏上,而 POST 不会。所以,如果这些数据是中文数据而且是非敏感数据,那么使用 GET ;如果用户输入的数据不是中文字符而且包含敏感数据,那么还是使用 POST为好。
二、Java中的Http编程主要有两种
1、标准的Java接口
2、标准的Apache接口
三、标准的Java接口编程
1、GET方式
- import java.io.ByteArrayOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.OutputStream;
- import java.net.HttpURLConnection;
- import java.net.URL;
- import java.util.HashMap;
- import java.util.Map;
- public class http_get1 {
- // public static final String path =
- // "http://192.168.137.103:8080/MyHttp/servlet/LoginAction";
- public static final String path = "http://localhost:8080/MyHttp/servlet/LoginAction";
- public static String getStringFromStream(InputStream is) {
- String str = "";
- ByteArrayOutputStream bos = new ByteArrayOutputStream();
- int len = 0;
- byte[] data = new byte[1024];
- if(is!=null){
- try {
- while ((len = is.read(data)) != -1) {
- bos.write(data, 0, len);
- }
- str = new String(bos.toByteArray(), "utf-8");
- } catch (IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- return str;
- }
- public static InputStream useGetMethod(Map<String, String> map,
- String encode) {
- InputStream is = null;
- StringBuffer sb = new StringBuffer(path);
- sb.append("?");
- if (map != null && !map.isEmpty()) {
- for (Map.Entry<String, String> entry : map.entrySet()) {
- sb.append(entry.getKey()).append("=").append(entry.getValue())
- .append("&");
- }
- sb.deleteCharAt(sb.length() - 1);
- System.out.println(sb.toString());
- URL url = null;
- OutputStream os = null;
- try {
- url = new URL(sb.toString());
- if (url != null) {
- HttpURLConnection con = (HttpURLConnection) url
- .openConnection();
- con.setRequestMethod("GET");
- con.setConnectTimeout(3000);
- con.setDoInput(true);
- con.setDoOutput(true);
- os = con.getOutputStream();
- os.write(sb.toString().getBytes(encode));
- os.close();
- if (con.getResponseCode() == 200) {
- is = con.getInputStream();
- }
- }
- } catch (Exception e) {
- }
- }
- return is;
- }
- public static void main(String[] args) {
- // TODO Auto-generated method stub
- Map<String, String> map = new HashMap<String, String>();
- map.put("username", "admin");
- map.put("password", "1243");
- String str = getStringFromStream(useGetMethod(map, "utf-8"));
- System.out.println(str);
- }
- }
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
public class http_get1 {
// public static final String path =
// "http://192.168.137.103:8080/MyHttp/servlet/LoginAction";
public static final String path = "http://localhost:8080/MyHttp/servlet/LoginAction";
public static String getStringFromStream(InputStream is) {
String str = "";
ByteArrayOutputStream bos = new ByteArrayOutputStream();
int len = 0;
byte[] data = new byte[1024];
if(is!=null){
try {
while ((len = is.read(data)) != -1) {
bos.write(data, 0, len);
}
str = new String(bos.toByteArray(), "utf-8");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return str;
}
public static InputStream useGetMethod(Map<String, String> map,
String encode) {
InputStream is = null;
StringBuffer sb = new StringBuffer(path);
sb.append("?");
if (map != null && !map.isEmpty()) {
for (Map.Entry<String, String> entry : map.entrySet()) {
sb.append(entry.getKey()).append("=").append(entry.getValue())
.append("&");
}
sb.deleteCharAt(sb.length() - 1);
System.out.println(sb.toString());
URL url = null;
OutputStream os = null;
try {
url = new URL(sb.toString());
if (url != null) {
HttpURLConnection con = (HttpURLConnection) url
.openConnection();
con.setRequestMethod("GET");
con.setConnectTimeout(3000);
con.setDoInput(true);
con.setDoOutput(true);
os = con.getOutputStream();
os.write(sb.toString().getBytes(encode));
os.close();
if (con.getResponseCode() == 200) {
is = con.getInputStream();
}
}
} catch (Exception e) {
}
}
return is;
}
public static void main(String[] args) {
// TODO Auto-generated method stub
Map<String, String> map = new HashMap<String, String>();
map.put("username", "admin");
map.put("password", "1243");
String str = getStringFromStream(useGetMethod(map, "utf-8"));
System.out.println(str);
}
}
2、POST方式
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.OutputStream;
- import java.net.HttpURLConnection;
- import java.net.MalformedURLException;
- import java.net.URL;
- import java.util.HashMap;
- import java.util.Map;
- public class http_post1 {
- // 使用POST请求与GET请求的区别就是POST请求不需要封装请求路径,只需要封装请求参数
- public static InputStream usePostMethod(Map<String, String> map,
- String encode) {
- StringBuffer buffer = new StringBuffer();
- InputStream is = null;
- OutputStream os = null;
- if (map != null && !map.isEmpty()) {
- for (Map.Entry<String, String> entry : map.entrySet()) {
- try {
- buffer.append(entry.getKey()).append("=")
- .append(entry.getValue())
- // .append(URLEncoder.encode(entry.getValue(),
- // encode))
- .append("&");
- } catch (Exception e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- }
- buffer.deleteCharAt(buffer.length() - 1);
- System.out.println(buffer.toString());
- }
- try {
- URL url = new URL(http_get1.path);
- if (url != null) {
- HttpURLConnection con = (HttpURLConnection) url
- .openConnection();
- con.setDoInput(true);
- con.setDoOutput(true);
- con.setRequestMethod("POST");
- con.setConnectTimeout(3000);
- byte[] tdata = buffer.toString().getBytes();
- // con.setRequestProperty("Content-Type",
- // "application/x-www-form-urlencoded");
- // con.setRequestProperty("Content-Length",
- // String.valueOf(tdata.length));
- os = con.getOutputStream();
- os.write(tdata);
- os.close();
- if (con.getResponseCode() == 200) {
- is = con.getInputStream();
- }
- }
- } catch (MalformedURLException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- } catch (IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- return is;
- }
- public static void main(String[] args) {
- Map<String, String> map = new HashMap<String, String>();
- map.put("username", "admin");
- map.put("password", "123");
- System.out.println(http_get1.getStringFromStream(usePostMethod(map,
- "utf-8")));
- }
- }
import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import java.util.HashMap; import java.util.Map; public class http_post1 { // 使用POST请求与GET请求的区别就是POST请求不需要封装请求路径,只需要封装请求参数 public static InputStream usePostMethod(Map<String, String> map, String encode) { StringBuffer buffer = new StringBuffer(); InputStream is = null; OutputStream os = null; if (map != null && !map.isEmpty()) { for (Map.Entry<String, String> entry : map.entrySet()) { try { buffer.append(entry.getKey()).append("=") .append(entry.getValue()) // .append(URLEncoder.encode(entry.getValue(), // encode)) .append("&"); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } buffer.deleteCharAt(buffer.length() - 1); System.out.println(buffer.toString()); } try { URL url = new URL(http_get1.path); if (url != null) { HttpURLConnection con = (HttpURLConnection) url .openConnection(); con.setDoInput(true); con.setDoOutput(true); con.setRequestMethod("POST"); con.setConnectTimeout(3000); byte[] tdata = buffer.toString().getBytes(); // con.setRequestProperty("Content-Type", // "application/x-www-form-urlencoded"); // con.setRequestProperty("Content-Length", // String.valueOf(tdata.length)); os = con.getOutputStream(); os.write(tdata); os.close(); if (con.getResponseCode() == 200) { is = con.getInputStream(); } } } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return is; } public static void main(String[] args) { Map<String, String> map = new HashMap<String, String>(); map.put("username", "admin"); map.put("password", "123"); System.out.println(http_get1.getStringFromStream(usePostMethod(map, "utf-8"))); } }
四、Apache接口
- import java.io.InputStream;
- import java.util.ArrayList;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
- import org.apache.http.HttpResponse;
- import org.apache.http.NameValuePair;
- import org.apache.http.client.entity.UrlEncodedFormEntity;
- import org.apache.http.client.methods.HttpPost;
- import org.apache.http.impl.client.DefaultHttpClient;
- import org.apache.http.message.BasicNameValuePair;
- public class http_myapache {
- public static InputStream useApacheMethod(Map<String, String> map,
- String encode) {
- InputStream is = null;
- List<NameValuePair> list = new ArrayList<NameValuePair>();
- for (Map.Entry<String, String> entry : map.entrySet()) {
- list.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
- }
- try {
- // 封装请求参数
- UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, encode);
- // 设置请求参数
- HttpPost post = new HttpPost(http_get1.path);
- post.setEntity(entity);
- // 执行请求
- DefaultHttpClient client = new DefaultHttpClient();
- HttpResponse response = client.execute(post);
- // 获取状态码
- if (response.getStatusLine().getStatusCode() == 200) {
- is = response.getEntity().getContent();
- }
- } catch (Exception e) {
- // TODO: handle exception
- }
- return is;
- }
- public static void main(String[] args) {
- Map<String, String> map = new HashMap<String, String>();
- map.put("username", "admin");
- map.put("password", "123");
- System.out.println(http_get1.getStringFromStream(useApacheMethod(map,
- "utf-8")));
- }
- }
import java.io.InputStream; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; public class http_myapache { public static InputStream useApacheMethod(Map<String, String> map, String encode) { InputStream is = null; List<NameValuePair> list = new ArrayList<NameValuePair>(); for (Map.Entry<String, String> entry : map.entrySet()) { list.add(new BasicNameValuePair(entry.getKey(), entry.getValue())); } try { // 封装请求参数 UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, encode); // 设置请求参数 HttpPost post = new HttpPost(http_get1.path); post.setEntity(entity); // 执行请求 DefaultHttpClient client = new DefaultHttpClient(); HttpResponse response = client.execute(post); // 获取状态码 if (response.getStatusLine().getStatusCode() == 200) { is = response.getEntity().getContent(); } } catch (Exception e) { // TODO: handle exception } return is; } public static void main(String[] args) { Map<String, String> map = new HashMap<String, String>(); map.put("username", "admin"); map.put("password", "123"); System.out.println(http_get1.getStringFromStream(useApacheMethod(map, "utf-8"))); } }
总结:
对于普通的Http编程可以选择GET方式或者POST方式,但对于更高要求的HTTP编程,Apache提供 的标准接口则更为灵活。
附Apache编程的JAR包和XMLPull解析时用到的JAR包:
Apache编程时用到的JAR包:
XMLPull解析时用到的JAR包: