小编MoO*_*OoG的帖子

我试图在这个线程的帮助下更改我的EditText的下划线颜色.

我做同样的事情-这是EditText同android:background组的@drawable/edt_bg_selector.

<EditText
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:ems="10"
         android:id="@+id/editText4"
         android:layout_weight="1"
         android:elevation="0dp"
         android:background="@drawable/edt_bg_selector" />

我的edt_bg_selector:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_focused="true" android:drawable="@drawable/edt_bg_selected" />
    <item android:state_focused="false" android:drawable="@drawable/edt_bg_normal" />
</selector>

... edt_bg_normal.xml...

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
    <item
        android:bottom="1dp"
        android:left="-2dp"
        android:right="-2dp"
        android:top="-2dp">
        <shape android:shape="rectangle" >
            <stroke
                android:width="1px"
                android:color="@color/colorWhite" />

            <solid android:color="#00FFFFFF" />

            <padding
                android:bottom="5dp"
                android:left="5dp"
                android:right="5dp"
                android:top="5dp" />
        </shape>
    </item>
</layer-list>

......和最后一个,edt_bg_selected.xml.

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
    <item …

我有一个项目,我想检查目录中是否存在文件.

if (File.Exists("\\Galerija\\" + Session["up_ime"] + "\\" + Session["slika_profila"]))
{
  Label1.Text = "exist";
}
else {
  Label1.Text = "does not exist";
}

该文件的目录是\Galerija\admin\slika.jpg.该文件位于目录中,但我返回它没有.我还打印了我给File.Exists()标签的路径,它应该是正确的.我不明白这是什么问题. - 应该找到该文件.

我有一个jsf,xhtml的web项目..当我登录时,我发送用户名和密码给Prijava.java.

提交按钮<h:commandButton value="Potrdi" action="#{Prijava.prijava}" />

Prijava方法:

public String prijava() throws SQLException{
        Baza baza = new Baza();

            //Gets connection with database
        Connection conn = baza.povezi();

        java.sql.Statement stmt = conn.createStatement();

        ResultSet set = stmt.executeQuery("SELECT up_ime, geslo FROM uporabnik WHERE up_ime ='" +upIme +"'");

        while(set.next()){


            //String baza_up_ime = set.getString("up_ime");
            //String geslo = set.getString("geslo");
            //String uspesno = "";


        }

        return "Profil";

    }

该方法返回字符串"Profil",因此页面应重定向到Profil.xhtml,我想重定向用户.当我点击提交按钮时出现此错误:

org.apache.el.parser.ParseException: Encountered " "}" "} "" at line 1, column 3.
Was expecting one of:
    <INTEGER_LITERAL> ...
    <FLOATING_POINT_LITERAL> ...
    <STRING_LITERAL> …