android如何调用后台接口？
解决方法：
1.android端请求代码：
//后端请求地址
String url="http://192.168.0.104:8080/PFMMIS/app/company/list.do";
//参数字符串，json字符串格式
String entity="{'name':'老王'}";
HttpClient httpClient = null;
HttpPost httpPost = new HttpPost(url);
try {
KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
trustStore.load(null, null);
SSLSocketFactory sf = new SSLSocketFactoryEx(trustStore);
sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
HttpParams params = new BasicHttpParams();
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(params, HTTP.UTF_8);
SchemeRegistry registry = new SchemeRegistry();
registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
registry.register(new Scheme("https", sf, 443));
ClientConnectionManager ccm = new ThreadSafeClientConnManager(params, registry);
httpClient= new DefaultHttpClient(ccm, params);
httpPost.setEntity(new StringEntity(entity));
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-type", "application/json");
HttpResponse resp = httpClient.execute(httpPost);
if (resp.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
Log.e(TAG, "httpGet fail, status code = " + resp.getStatusLine().getStatusCode());
return null;
}
String result=EntityUtils.toString(resp.getEntity());//结果
2.后台接口代码：
@RequestMapping(value="/list")
@ResponseBody
public Map list(HttpServletRequest request) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(request.getInputStream()));//post方式传递读取字符流
String jsonStr = null;
StringBuilder result = new StringBuilder();
try {
while ((jsonStr = reader.readLine()) != null) {
result.append(jsonStr);//获取字符串转json即可获取参数
}
} catch (IOException e) {
e.printStackTrace();
}
reader.close();// 关闭输入流
}