Http协议[Get和Post]详解

Http协议[Get和Post]详解 (2012-11-27 11:23:26)

标签：

android

http

get

post

mars

分类： Android系列

访问url，需要连接网络。所以，首先应该添加Manifest权限：

<uses-permission android:name="android.permission.INTERNET"/>

1.Get请求（核心代码）

private String baseUrl="http://192.168.1.100:8080/serverside/name";

private String name,age; //代表用户输入的请求内容

private HttpResponse httpResponse;

private HttpEntity httpEntity;

private InputStream inputStream;

public void onClick(View v){

//此处的name+age，作为数据发送

String url=baseUrl+"?"+"name="+name+"&"+"age="+age;

//生成一个请求对象

HttpGet httpGet=new HttpGet(url);

//生成一个http客户端对象

HttpClient httpClient=new DefaultHttpClient();

//使用客户端发送请求对象

try {

//接收服务器返回的响应

httpResponse=httpClient.execute(httpGet);

//获取响应的内容

httpEntity=httpResponse.getEntity();

//将内容写入流中

inputStream=httpEntity.getContent();

//InputStreamReader是字节流到字符流的桥梁，将字节流转换为字符流存入缓冲区BufferedReader中

BufferedReader bufferedReader=new BufferedReader(new InputStreamReader(inputStream));

String result="";

String line=""; //每次读取一行数据

while((line=bufferedReader.readLine()) != null){

result=result+line;

}

//输出服务器返回的内容

System.out.println(result);

} catch (Exception e) {

e.printStackTrace();

}

2、POST请求（核心代码）

private String baseUrl="http://192.168.1.100:8080/serverside/name";

private String name,age;

private HttpResponse httpResponse;

private HttpEntity httpEntity;

private InputStream inputStream;

public void onClick(View v){

//把请求的数据，添加到NameValuePair中

NameValuePair nameValuePair1=new BasicNameValuePair("name", name);

NameValuePair nameValuePair2=new BasicNameValuePair("age", age);

//将其添加到list列表中

List list=new ArrayList();

list.add(nameValuePair1);

list.add(nameValuePair2);

try {

//将列表添加到HttpEntity中

HttpEntity requesthttpEntity=new UrlEncodedFormEntity(list);

//生成一个请求对象

HttpPost httpPost=new HttpPost(baseUrl);

//httpPost设置Entity ==把数据添加到了httpPost中

httpPost.setEntity(requesthttpEntity);

//生成一个http客户端对象

HttpClient httpClient=new DefaultHttpClient();

httpResponse=httpClient.execute(httpPost);