修改密码主要代码:db.execSQL("update user set passward = ? where username = ?",new String[] { updata_newpass, updata_user });修改密码功能全部代码:
// 修改密码确定 updata_newpass = et_updata_newpass.getText().toString();// 新密码 updata_oldpass = et_updata_oldpass.getText().toString();// 新密码 updata_user = et_updata_user.getText().toString();// 新密码 Cursor cursor_getuser = db.rawQuery( "select * from user where username = ?", new String[] { updata_user });// 新建数据库指针 if (updata_user.equals("")) {// 用户名为空 DiyToast.showToast(LoginActivity.this, "请输入用户名"); } else if (updata_oldpass.equals("")) {// 旧密码为空 DiyToast.showToast(LoginActivity.this, "请输入旧密码"); } else if (updata_newpass.equals("")) {// 新密码为空 DiyToast.showToast(LoginActivity.this, "请输入新密码"); } else { if (cursor_getuser.moveToNext()) { Cursor cursor_getoldpass = db.rawQuery( "select * from user where username = ?", new String[] { updata_user }); cursor_getoldpass.moveToFirst(); String oldpass = cursor_getoldpass .getString(cursor_getoldpass .getColumnIndex("passward")); if (updata_oldpass.equals(oldpass)) { if (updata_newpass.equals(updata_oldpass)) { DiyToast.showToast(LoginActivity.this, "新旧密码不能一致!"); } else { db.execSQL( "update user set passward = ? where username = ?", new String[] { updata_newpass, updata_user });// 更新数据库 DiyToast.showToast(LoginActivity.this, "修改密码成功"); line_login.setVisibility(View.VISIBLE); line_reg.setVisibility(View.GONE); line_updata_pass.setVisibility(View.GONE); } } else { DiyToast.showToast(LoginActivity.this, "旧密码输入错误"); } } else { DiyToast.showToast(LoginActivity.this, "用户名错误"); } }