Android(安卓)intent and activity 经典程序

#massage_box {
position: absolute;
left: expression((body.clientWidth-350)/ 2 );
top: expression((body.clientHeight-200)/ 2 );
width: 350px;
height: 200px;

z-index: 2;
visibility: hidden
}

#mask {
position: absolute;
top: 0;
left: 0;
width: expression(body.scrollWidth);
height: expression(body.scrollHeight);
background: #d3ddea;
filter: ALPHA(opacity =50);
z-index: 1;
visibility: hidden
}

//数据写入IntentIntent openWelcomeActivityIntent=new Intent();Bundle myBundelForName=new Bundle();myBundelForName.putString("Key_Name",inName.getText().toString());myBundelForName.putString("Key_Age",inAge.getText().toString());openWelcomeActivityIntent.putExtras(myBundelForName);openWelcomeActivityIntent.setClass(AndroidBundel.this, Welcome.class);startActivity(openWelcomeActivityIntent);//从Intent 中获取数据Bundle myBundelForGetName=this.getIntent().getExtras();String name=myBundelForGetName.getString("Key_Name");

package zyf.Android.Study;import ……import android.content.Intent;import android.net.Uri;import android.view.View.OnClickListener;public class AndroidStudy_TWO extends Activity {@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);final EditText inName = (EditText) findViewById(R.id.name);final TextView result = (TextView) findViewById(R.id.result);Button button_Start_Browser = (Button) findViewById(R.id.submit_toNET);Button button_Login=(Button) findViewById(R.id.show_Login);Button button_showLoginName=(Button)findViewById(R.id.submit_toshowLoingName);button_Start_Browser.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v) {Uri myUri = Uri.parse("http://www.flashwing.net");Intent openBrowserIntent = new Intent(Intent.ACTION_VIEW,myUri);startActivity(openBrowserIntent);}});button_Login.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v) {Intent openWelcomeActivityIntent=new Intent();openWelcomeActivityIntent.setClass(AndroidStudy_TWO.this,Welcome.class);startActivity(openWelcomeActivityIntent);}});button_showLoginName.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v) {result.setText(inName.getText()+"欢迎您进入");}});}}

使用Bundle在Activity间传递数据2从源请求Activity 中通过一个Intent 把一个服务请求传到目标Activity 中//数据写入IntentIntent openWelcomeActivityIntent=new Intent();Bundle myBundelForName=new Bundle();myBundelForName.putString("Key_Name",inName.getText().toString());myBundelForName.putString("Key_Age",inAge.getText().toString());openWelcomeActivityIntent.putExtras(myBundelForName);openWelcomeActivityIntent.setClass(AndroidBundel.this, Welcome.class);startActivity(openWelcomeActivityIntent);//从Intent 中获取数据Bundle myBundelForGetName=this.getIntent().getExtras();String name=myBundelForGetName.getString("Key_Name");myTextView_showName.setText("欢迎您进入："+name);private Intent toNextIntent;//Intent 成员声明toNextIntent=new Intent();//Intent 定义toNextIntent.setClass(TwoActivityME3.this, SecondActivity3.class);//设定开启的下一个ActivitystartActivityForResult(toNextIntent, REQUEST_ASK);//开启Intent 时候，把请求码同时传递-----------------------------------Android 编程基础3在源请求Activity 中等待Intent 返回应答结果，通过重载onActivityResult()方法☻ 第一个参数是你开启请求Intent时的对应请求码，可以自己定义。☻ 第二个参数是目标Activity返回的验证结果码☻ 第三个参数是目标Activity返回的Intent目标Activity 中发送请求结果代码，连同源Activity 请求的数据一同绑定到Bundle中通过Intent 传回源请求Activity 中Log与DDMS(查看Log等信息)@Overrideprotected void onActivityResult(int requestCode,int resultCode, Intent data) {// TODO Auto-generated method stubsuper.onActivityResult(requestCode, resultCode, data);if(requestCode==REQUEST_ASK){if(resultCode==RESULT_CANCELED){setTitle("Cancel****");}else if(resultCode==RESULT_OK){showBundle=data.getExtras();//从返回的Intent中获得BundleName=showBundle.getString("myName");//从bundle中获得相应数据text.setText("the name get from the second layout:\n"+Name);}}}backIntent=new Intent();stringBundle=new Bundle();stringBundle.putString("myName", Name);backIntent.putExtras(stringBundle);setResult(RESULT_OK, backIntent);//返回Activity结果码finish();

1、打开cmd输入netca。 2、选择【本地net服务名配置】→下一步。 3、选择【添加】→下一步。 4、在【服务名】中输入你想要连接的服务器上的oracle服务的名字→下一步。 5、选择【tcp】→下一步。 6、在【主机名】中输入你想要连接的服务器ip，端口号不变→下一步。 7、选择【进行测试】→下一步。（当然你也可以选择不测试） ※1测试如果不通过，点击【更改登录】输入一个肯定能登入的【用户名】和【口令】→确定，出现【正在连接...测试成功。】表明测试成功。 ※2测试不通过的话，点【上一步】确认你写的【服务名】和【主机名】，确认无误的情况下，确认你要连接的服务器oracle监听服务已经打开。 8、在【net服务名中】输入你想要使用的本地的服务名→下一步。 ※就是【sqlplus user/passwd @本地服务名】。 9、选择【否】→下一步。 10、出现【net服务配置完毕】字样→下一步。 11、点击【完成】完成服务配置。 12、在上面服务配置完成以后，在cmd中输入如下命令即可远程登录oracle服务器： sqlplus user_name/[email protected]本地服务名 一定记住，上面的本地服务名是你第8步写的服务名。

3. JBoss 的安全设置3.1 jmx-console 登录的用户名和密码设置 默认情况访问 http://localhost:8080/jmx-console 就可以浏览jboss的部署管理的一些信息，不需要输入用户名和密码，使用起来有点安全隐患。下面我们针对此问题对jboss进行配置，使得访问jmx-console也必须要知道用户名和密码才可进去访问。步骤如下：3.1.1 修改jboss-web.xml文件打开/server/default/deploy/jmx-console.war/WEB-INF/jboss-web.xml文件，去掉<security-domain>java:/jaas/jmx-console</security-domain>的注释。修改后的该文件内容为：<jboss-web>   <!-- Uncomment the security-domain to enable security. You will      need to edit the htmladaptor login configuration to setup the      login modules used to authentication users.-->      <security-domain>java:/jaas/jmx-console</security-domain></jboss-web>3.1.2 修改web.xml文件与3.1.1中的jboss-web.xml同级目录下的web.xml文件，查找到<security-constraint/>节点，去掉它的注释，修改后该部分内容为：<!-- A security constraint that restricts access to the HTML JMX console   to users with the role JBossAdmin. Edit the roles to what you want and   uncomment the WEB-INF/jboss-web.xml/security-domain element to enable   secured access to the HTML JMX console.-->   <security-constraint>     <web-resource-collection>       <web-resource-name>HtmlAdaptor</web-resource-name>       <description>An example security config that only allows users with the         role JBossAdmin to access the HTML JMX console web application       </description>       <url-pattern>/*</url-pattern>       <http-method>GET</http-method>       <http-method>POST</http-method>     </web-resource-collection>     <auth-constraint>       <role-name>JBossAdmin</role-name>     </auth-constraint>   </security-constraint>   在此处可以看出，为登录配置了角色JBossAdmin。3.1.3 修改login-config.xml文件在第一步中的jmx-console安全域和第二步中的运行角色JBossAdmin都是在login-config.xml中配置，我们在JBoss安装目录/server/default/config下找到它。查找名字为：jmx-console的application-policy：<application-policy name = "jmx-console">       <authentication>          <login-module code="org.jboss.security.auth.spi.UsersRolesLoginModule"             flag = "required">           <module-option name="usersProperties">props/jmx-console-users.properties</module-option>           <module-option name="rolesProperties">props/jmx-console-roles.properties</module-option>          </login-module>       </authentication>    </application-policy>在此处可以看出，登录的角色、用户等的信息分别在props目录下的jmx-console-roles.properties和jmx-console-users.properties文件中设置，分别打开这两个文件。其中jmx-console-users.properties文件的内容如下：# A sample users.properties file for use with the UsersRolesLoginModuleadmin=admin该文件定义的格式为：用户名=密码，在该文件中，默认定义了一个用户名为admin，密码也为admin的用户，读者可将其改成所需的用户名和密码。jmx-console-roles.properties的内容如下：# A sample roles.properties file for use with the UsersRolesLoginModuleadmin=JBossAdmin, HttpInvoker该文件定义的格式为：用户名=角色，多个角色以“,”隔开，该文件默认为admin用户定义了JBossAdmin和HttpInvoker这两个角色。配置完成后读者可以通过访问： http://localhost:8088/jmx-console/ ，输入jmx-console-roles.properties文件中定义的用户名和密码，访问jmx-console的页面。如图：

package action;import java.awt.Image;import java.awt.Toolkit;import java.awt.image.BufferedImage;import java.awt.image.CropImageFilter;import java.awt.image.FilteredImageSource;import java.awt.image.ImageFilter;import java.awt.image.ImageProducer;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.ArrayList;import java.util.Date;import java.util.List;import java.util.Map;import java.util.Random;import javax.imageio.ImageIO;import javax.servlet.http.HttpServletRequest;import org.apache.struts2.ServletActionContext;import po.Blog;import po.Login;import po.Photo;import po.Userinfo;import service.QqrService;import util.ImageHepler;import com.opensymphony.xwork2.ActionContext;import com.sun.image.codec.jpeg.JPEGCodec;import com.sun.image.codec.jpeg.JPEGImageEncoder;public class KindEditorAction extends BaseAction {private static final long serialVersionUID = 1L;private QqrService qqrService;// 封装参数private File imgFile;private String imgFileFileName;private String imgFileContentType;private String fileDir = "/blogimg";private String imgTitle = "";private String align;private int imgWidth = 0;private int imgHeight = 0;// 上传kindeditor 图片及压缩@SuppressWarnings("deprecation")public String uploadimg() throws Exception {// TODO Auto-generated method stub// 只能传图片try {if (this.imgFile != null) {File dir = new File(ServletActionContext.getRequest().getRealPath(fileDir));if (!dir.exists())dir.mkdir();Integer login_id = (Integer) ActionContext.getContext().getSession().get("login_id");Date dt = new Date();File dst = new File(dir.getAbsolutePath() + File.separator+ login_id + new Date().getTime() + ".jpg");this.resize_image(this.imgFile, dst);String id = "context";String url = ServletActionContext.getRequest().getContextPath()+ "/" + this.fileDir + "/" + dst.getName();String border = "0";String result = "<script type='text/javascript'>";result += "parent.KE.plugin['image'].insert('" + id + "','"+ url + "','" + imgTitle + "','" + imgHeight + "','"+ imgHeight + "','" + border + "','" + align + "');   ";result += "</script>";ServletActionContext.getResponse().getWriter().write(result);} else {return null;}} catch (RuntimeException e) {// TODO Auto-generated catch blocke.printStackTrace();}return null;}// 自己封装的一个把源文件对象复制成目标文件对象public boolean copy(File src, File dst) {InputStream in = null;OutputStream out = null;try {in = new BufferedInputStream(new FileInputStream(src), 1024);out = new BufferedOutputStream(new FileOutputStream(dst), 1024);byte[] buffer = new byte[1024];int len = 0;while ((len = in.read(buffer)) > 0) {out.write(buffer, 0, len);}return true;} catch (Exception e) {e.printStackTrace();return false;} finally {if (null != in) {try {in.close();} catch (IOException e) {e.printStackTrace();}}if (null != out) {try {out.close();} catch (IOException e) {e.printStackTrace();}}}}/** * 图像压缩 *  * @param fi大图文件 * @param fo将要转换出的小图文件 */public boolean resize_image(File fi, File fo) {try {// File fi = new File("E:/3.jpg"); // 大图文件// File fo = new File("E:/333.jpg"); // 将要转换出的小图文件// AffineTransform transform = new AffineTransform();BufferedImage bis = ImageIO.read(fi);int w = bis.getWidth();// System.out.println(w);int h = bis.getHeight();// System.out.println(h);// double scale = (double) w / h;int nw = w;int nh = h;BufferedImage tag = new BufferedImage(nw, nh,BufferedImage.TYPE_INT_RGB);this.imgWidth = tag.getWidth();this.imgHeight = tag.getHeight();if (this.imgWidth > 250)this.imgWidth = 250;if (this.imgHeight >= 250)this.imgHeight = 250;tag.getGraphics().drawImage(bis, 0, 0, nw, nh, null); // 绘制缩小后的图// 转换为32*32 jpg格式FileOutputStream newimage = new FileOutputStream(fo); // 输出到文件流JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(newimage);encoder.encode(tag);newimage.close();return true;} catch (Exception e) {e.printStackTrace();return false;}}public void imageShow(int width, int height, int w, int h) {int i = width;int j = height;width = w;height = h;if (i > w) {float width_Bili = w / i;float height_Bili = h / j;float bili = width_Bili;if (width_Bili < height_Bili) {bili = width_Bili;} else {bili = height_Bili;}i = (int) (i * bili);j = (int) (j * bili);} else {if (j > h) {float bili = (float) (h / j);i = (int) (i * bili);j = (int) (j * bili);}}width = i;height = j;}/** * 图像的缩略 *  *  * width 输出图片大小 height *  * @param fi大图文件 * @param fo将要转换出的小图文件 */public boolean resize_image(File fi, File fo, int width, int height) {try {BufferedImage bis = ImageIO.read(fi);int w = bis.getWidth();int h = bis.getHeight();int nw = width;int nh = height;BufferedImage tag = new BufferedImage(nw, nh,BufferedImage.TYPE_INT_RGB);tag.getGraphics().drawImage(bis, 0, 0, nw, nh, null); // 绘制缩小后的图// 转换为32*32 jpg格式FileOutputStream newimage = new FileOutputStream(fo); // 输出到文件流JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(newimage);encoder.encode(tag);newimage.close();return true;} catch (Exception e) {e.printStackTrace();return false;}}/** * 图像的等比缩略 *  *  * width 输出图片大小 height *  * @param fi大图文件 * @param fo将要转换出的小图文件 */public boolean geometric_image(File fi, File fo, int width, int height) {try {BufferedImage bis = ImageIO.read(fi);int w = bis.getWidth();int h = bis.getHeight();int nw = w;int nh = h;if (w > width) {nw = width;nh = nw * h / w;if (nh > height) {nh = height;nw = nh * w / h;}} else if (h > height) {nh = height;nw = nh * w / h;if (nw > width) {nw = width;nh = nw * h / w;}}BufferedImage tag = new BufferedImage(nw, nh,BufferedImage.TYPE_INT_RGB);tag.getGraphics().drawImage(bis, 0, 0, nw, nh, null); // 绘制缩小后的图// 转换为32*32 jpg格式FileOutputStream newimage = new FileOutputStream(fo); // 输出到文件流JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(newimage);encoder.encode(tag);newimage.close();return true;} catch (Exception e) {e.printStackTrace();return false;}}public String getImgTitle() {return imgTitle;}public void setImgTitle(String imgTitle) {this.imgTitle = imgTitle;}public String getAlign() {return align;}public void setAlign(String align) {this.align = align;}public QqrService getQqrService() {return qqrService;}public void setQqrService(QqrService qqrService) {this.qqrService = qqrService;}public File getImgFile() {return imgFile;}public void setImgFile(File imgFile) {this.imgFile = imgFile;}public String getImgFileFileName() {return imgFileFileName;}public void setImgFileFileName(String imgFileFileName) {this.imgFileFileName = imgFileFileName;}public String getImgFileContentType() {return imgFileContentType;}public void setImgFileContentType(String imgFileContentType) {this.imgFileContentType = imgFileContentType;}public String getFileDir() {return fileDir;}public void setFileDir(String fileDir) {this.fileDir = fileDir;}}

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