read pdf file in java

1, performance: a ". xml" file with an extension2. Storage: Tree-shaped structure3. XML parsing application:Communication between different applications-booking software and payment softwareCommunication between different platforms--operating systemSharing data between different platforms--websites and mobile phones4.The process of reading an XML file in a Java p

One, the configuration file config.properties is placed in the SRC root directory: For example, mine is/propertiestest/src/com/xuliugen/project/type.propertiesThe contents of the configuration file are as follows:left=com.sunny.project.LeftHairright=com.sunny.project.RightHairin=com.sunny.project.InHairRead the code in the configuration file as follows: Public cl

) {attr.getname (); Attr.getvalue (); } Iterator ITT=Book.elementiterator (); while(Itt.hasnext ()) {Element Bookchild=(Element) itt.next (); Bookchild.getname (); Bookchild.getstringvalue (); } } } Catch(documentexception e) {e.printstacktrace (); } }}Analysis of four analytic methods:Dom:。 Platform-independent official parsing method* Required memory performance is a bit higherSax:。 An event-driven parsing approach provided

/*A class containing methods useful for manipulatingText Files1. readfilebyline:Reads the contents of a text file line by lineAnd returns a string array representation, whereEach line is stored in an element of the array.2. readfileRead the contents of a text file into a string*/ Import java. Io .*;Import java. util .*

The serialization of objects in Java classes is done through ObjectOutputStream and ObjectInputStream.Write:1File afile=NewFile ("E:\\c.txt");2Stu a=NewStu (1, "AA", "1");3FileOutputStream fileoutputstream=NULL;4 Try {5FileOutputStream =NewFileOutputStream (afile);6ObjectOutputStream objectoutputstream=NewObjectOutputStream (fileoutputstream);7 Objectoutputstream.writeobject (a);8 Objectoutputstream.flush ();9 objectoutputstream.close ();Ten}C

Read in Java read. Properties config file null pointer exceptionException in thread "main" java.lang.NullPointerExceptionAt Java.util.properties$linereader.readline (Unknown Source)At java.util.Properties.load0 (Unknown Source)At Java.util.Properties.load (Unknown Source)At Com.bubianchenmo.ch02.TestProperties.main (te

With @propertysource, you can specify the read configuration file and get the value by @value annotations, using: PackageCN.QLQ;ImportOrg.springframework.context.annotation.Bean;ImportOrg.springframework.context.annotation.ComponentScan;Importorg.springframework.context.annotation.Configuration;ImportOrg.springframework.context.annotation.PropertySource; @Configuration//This annotation indicates that the cl

colorG.clearrect (0, 0, 139, 139);G.setcolor (Color.Black); Barcode Colorif (bstr.length > 0 bstr.length Boolean[][] B = Qrcode.calqrcode (BSTR);for (int i = 0; i for (int j = 0; J if (B[j][i]) {G.fillrect (J * 3 + 2, I * 3 + 2, 3, 3);}}}}G.dispose ();Bi.flush ();String FilePath = "d:/images/" +param.substring (0,5) + ". jpg";File F = new file (FilePath);Imageio.write (BI, "JPG", f);}public static void Ma

Package Ba;import java.io.*;p ublic class Zifutest {public static void main (string[] args) {FileInputStream fis=null;input StreamReader Reader=null; File F=new file ("G:/javakc.txt"), try {fis=new fileinputstream (f); Reader=new InputStreamReader (FIS);//create character array char[]c= New char[2];//length int len=0;try {while ((Len=reader.read (c)) >0) {string Str=new string (C,0,len); System.out.print (s

Properties Properties =NewProperties ();//Method 1Try { //Loaded in the loaded class file, the file is placed in the class fileClassLoader loader = Propertiesutil.class. getClassLoader (); InputStream instream= Loader.getresourceasstream ("Config.properties"); Properties.load (instream); Value=Properties.getproperty (Propkey);} Catch(Exception e) {logger.error ("An error occured!");}//Method 2Try {

Java: Package Com.iofamily.app; Import Java.io.File; Import Com.iofamily.util.FileUtils; /** * @author lmiky * @date 2013-11-7/public class Test { /** * bytes converted to 16 * @author lmiky Nodejs: var utils = require ('./utils '); var fs = require (' FS '); var fileUtils = module.exports; /** * Convert file binary data to file * @param file

The Java Read Properties configuration file code is as follows: String Path = System.getproperty ("User.dir") + "\\properties\\config.properties"; Properties Pro = new properties (); FileInputStream in = new FileInputStream (path); Pro.load (in); System.out.println (Pro.getproperty ("DriverPath")); System.out.println (Pro.getproperty ("username"));

private void FileReader () throws ioexception{BufferedReader bf= New BufferedReader (New InputStreamReader (New FileInputStream ("d:\\comparedll.py"), "UTF-8");String str= "";while ((Str=bf.readline ())!=null) {System.out.println (str);}Bf.close ();}If you do not specify the encoding, the system default encoding is used when reading the file, typically GBKI/O class handling for JavaThe reader class is the parent of the

references here is clear.Method 2public void doget (HttpServletRequest request, httpservletresponse response) throws Servletexception, IOException { String path = This.getservletcontext (). Getrealpath ("/web-inf/classes/data.properties"); FileInputStream in = new FileInputStream (path); Properties Pros = new properties ();p ros.load (in); String username = pros.getproperty ("username"); String Password = pros.getproperty ("password"); System.out.println ("username =" + username); SYSTEM.OUT.PR

Using Java code to read the Excel file code times the error is as follows:Jxl.read.biff.BiffException:Unable to recognize OLE streamAt Jxl.read.biff.compoundfile.At Jxl.read.biff.file.At JXL. Workbook.getworkbook (workbook.java:268)At JXL. Workbook.getworkbook (workbook.java:253)At Test1.main (test1.java:25)Cause: Do n

Java read-write configuration file prop.properties@Testpublic void Fun () throws ioexception{Properties Prop=new properties ();String Path2=this.getclass (). GetResource ("/test/conf/file.properties"). GetPath ();System.out.println (path2);InputStream in=new Bufferedinputstream (New FileInputStream (path2));Prop.load (in);Integer Count=integer.parseint (Prop.getp

Properties class inherits from HashtableIt provides several main methods:1. GetProperty (String key) that searches for properties in this property list with the specified key. That is, by the parameter key, the value corresponding to the key is obtained.2. Load (InputStream instream) to read the list of attributes (key and element pairs) from the input stream. Gets all the key-value pairs in the file by loa

The method of reading the properties configuration file, often forget, record down memo:Package Utils;Import java.io.IOException;Import Java.io.inputstream;import java.util.Properties; Public classPropertyconfig {Private StaticProperties config; Static{config=NewProperties (); InputStreaminch= Classloader.getsystemresourceasstream ("storm.properties"); Storm.properties stored in the Classpath directory Try{config.load (inch); } Catch(IOExceptio

First is a user class: Package spring_introduction;public class User {String name;Public String GetName () {return name;}public void SetName (String name) {THIS.name = name;}public void Hello () {System.out.println ("Hello" +name);}The configuration file Name.propertiesname=lucy below is the Helloname Output class: Package spring_introduction;Import java.io.IOException;Import java.util.Properties;Import Sun.org.mozilla.javascript.internal.ast.Name;pub

1. Use the indexof () and substring () provided by the string class to quickly get specific content in a file public static void Main (string[] args) { //test where a word appears String reqmessage = " This Java implementation of the use of a simple string class to read the contents of a tag in an XML file