需求：用户登录（name:用户名，pwd:密码）
（一）HttpGet :doGet()方法
//doGet():将参数的键值对附加在url后面来传递
- public String getResultForHttpGet(String name,String pwd) throws ClientProtocolException, IOException{
- //服务器 ：服务器项目 ：servlet名称
- String path="http://192.168.5.21:8080/test/test";
- String uri=path+"?name="+name+"&pwd="+pwd;
- //name:服务器端的用户名，pwd:服务器端的密码
- //注意字符串连接时不能带空格
- String result="";
- HttpGet httpGet=new HttpGet(uri);//编者按：与HttpPost区别所在，这里是将参数在地址中传递
- HttpResponse response=new DefaultHttpClient().execute(httpGet);
- if(response.getStatusLine().getStatusCode()==200){
- HttpEntity entity=response.getEntity();
- result=EntityUtils.toString(entity, HTTP.UTF_8);
- }
- return result;
- }
（二）HttpPost ：doPost()方法
//doPost():将参数打包到http报头中传递
- public String getReultForHttpPost(String name,String pwd) throws ClientProtocolException, IOException{
- //服务器 ：服务器项目 ：servlet名称
- String path="http://192.168.5.21:8080/test/test";
- HttpPost httpPost=new HttpPost(path);
- List<NameValuePair>list=new ArrayList<NameValuePair>();
- list.add(new BasicNameValuePair("name", name));
- list.add(new BasicNameValuePair("pwd", pwd));
- httpPost.setEntity(new UrlEncodedFormEntity(list,HTTP.UTF_8));//编者按：与HttpGet区别所在，这里是将参数用List传递
- String result="";
- HttpResponse response=new DefaultHttpClient().execute(httpPost);
- if(response.getStatusLine().getStatusCode()==200){
- HttpEntity entity=response.getEntity();
- result=EntityUtils.toString(entity, HTTP.UTF_8);
- }
- return result;
- }
-------------------------------------------------------------------------------------------------------
由此我们可知，HttpGet和HttpPost的区别在于前者是将参数在地址中传递，后者是将参数用List传递。