标签：
简单的登录逻辑代码
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package
com.example.mifi;import
java.util.HashMap;import
java.util.Map;import
org.json.JSONObject;import
android.app.Activity;import
android.content.Intent;import
android.os.Bundle;import
android.view.View;import
android.view.View.OnClickListener;import
android.widget.Button;import
android.widget.EditText;import
com.example.mifi.utils.DialogUtil;import
com.example.mifi.utils.HttpUtil;public
class
Login extends
Activity { EditText
etName, etPass; Button
bnLogin, bnCancel; public
void
onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.login); etName
= (EditText) findViewById(R.id.userEditText); etPass
= (EditText) findViewById(R.id.pwdEditText); bnLogin
= (Button) findViewById(R.id.bnLogin); bnCancel
= (Button) findViewById(R.id.bnCancel); bnLogin.setOnClickListener(new
OnClickListener() { public
void
onClick(View v) { if
(!validate()) return; if
(loginPro()) { Intent
intent = new
Intent(Login.this,
Main.class); startActivity(intent); finish(); return; } DialogUtil.showDialog(Login.this,
"用户名或密码错误,请重新输入!",
false); } }); } /** *
验证登录帐号 */ private
boolean
loginPro() { String
username = etName.getText().toString().trim(); String
password = etPass.getText().toString().trim(); JSONObject
jsonObj; try
{ jsonObj
= Query(username, password); if
(jsonObj.getBoolean("success")) return
true; }
catch
(Exception e) { DialogUtil.showDialog(this,
"服务器响应异常，请稍后再试!",
false); e.printStackTrace(); } return
false; } /** *
验证用户名密码 */ private
JSONObject Query(String username, String password) throws
Exception { Map<String,
String> map = new
HashMap<String, String>(); map.put("username",
username); map.put("password",
password); String
url = HttpUtil.BASE_URL + "client/login/"; return
new
JSONObject(HttpUtil.doPost(url, map)); } /** *
输入为空 */ private
boolean
validate() { String
username = etName.getText().toString().trim(); String
password = etPass.getText().toString().trim(); if
("".equals(username))
{ DialogUtil.showDialog(this,
"请输入用户名!",
false); return
false; } if
("".equals(password))
{ DialogUtil.showDialog(this,
"请输入用户密码!",
false); return
false; } return
true; }} |
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原文地址：http://blog.csdn.net/u014311070/article/details/42649937
