DOM problem: How to parse a string

Hey i am developing a distributed application in which servers pass on a request in XML format.....However this request is passed in the form of a string....I am using DOM to parse the xml. It is a fairly small string with like 7-9 lines of code. However the problem with DOM is that it allows me to parse the files not the strings......anyidea how to do that.....i cannot create temp files.....because there will be a huge number of requests so ..............or should i use another parse........if yes then tell me which is the easiest approach......i just wanna add or remove some tags at each server and then pass the request to the next

thanx but the problem is not solved.........i am importing java.xml.parsers.sax.InputSource..........
Now when i use this thingy..........i get a SAX based exception saying that there is no root node..........however for the same file if i put the file name i get the code working

Similar Messages

How to Parse a string into an XML DOM ?

Hi,
I want to parse a String into an XML DOM. Not able to locate any parser which supports that. Any pointers to this?

Download Xerces from xml.apache.org. Place the relevant JAR's on your classpath. Here is sample code to get a DOM document reference.
- Saish
public final class DomParser extends Object {
     // Class Variables //
     private static final DocumentBuilder builder;
     private static final String JAXP_SCHEMA_LANGUAGE =
         "http://java.sun.com/xml/jaxp/properties/schemaLanguage";
     /** W3C schema definitions */
     private static final String W3C_XML_SCHEMA =
         "http://www.w3.org/2001/XMLSchema";
     // Constructors //
     static {
          try {
               DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
               factory.setNamespaceAware(true);
               factory.setValidating(true);
               factory.setAttribute(JAXP_SCHEMA_LANGUAGE, W3C_XML_SCHEMA);
               builder = factory.newDocumentBuilder();
               builder.setErrorHandler(new ErrorHandler() {
                   public void warning(SAXParseException e) throws SAXException {
                       System.err.println("[warning] "+e.getMessage());
                   public void error(SAXParseException e) throws SAXException {
                       System.err.println("[error] "+e.getMessage());
                   public void fatalError(SAXParseException e) throws SAXException {
                       System.err.println("[fatal error] "+e.getMessage());
                       throw new XmlParsingError("Fatal validation error", e);
          catch (ParserConfigurationException fatal) {
               throw new ConfigurationError("Unable to create XML DOM document parser", fatal);
          catch (FactoryConfigurationError fatal) {
               throw new ConfigurationError("Unable to create XML DOM document factory", fatal);
     private DomParser() {
          super();
     // Public Methods //
     public static final Document newDocument() {
          return builder.newDocument();
     public static final Document parseDocument(final InputStream in) {
          try {
               return builder.parse(in);
          catch (SAXException e) {
               throw new XmlParsingError("SAX exception during parsing. Document is not well-formed or contains " +
                    "illegal characters", e);
          catch (IOException e) {
               throw new XmlParsingError("Encountered I/O exception during parsing", e);
}- Saish

How to parse xml string

Hi! I'm having problems parsing an xml string. I've done DOM and SAX parsing before. But both of them either parse a file or data from an input source. I don't think they handle strings. I also don't want to write the string into a file just so I can use DOM or SAX.
I'm looking for something where I could simply do:
Document doc = documentBuilder.parse( myXMLString );
So the heirarchy is automatically established for me. Then I could just do
Element elem = doc.getElement();
String name = elem.getTagName();
These aren't the only methods I would want to use. Again, my main problem is how to parse xml if it is stored in a string, not a file, nor comming from a stream.
thanks!

But both of them either parse a file or data from an input source. I don't think they handle strings.An InputSource can be constructed with a Reader as input. One useful subclass of Reader is StringReader, so you'd use something likeDocument doc = documentBuilder.parse(new InputSource(new StringReader(myXMLString)));

How to parse a string containing xml data

Hi,
Is it possible to parse a string containing xml data into a array list?
my string contains xml data as <blood_group>
     <choice id ='1' value='A +ve'/>
     <choice id ='2' value='B +ve'/>
         <choice id ='3' value='O +ve'/>
</blood_group>how can i get "value" into array list?

There are lot of Java XML parsing API's available, e.g. JAXP, DOM4J, JXPath, etc.
Of course you can also write it yourself. Look which methods the String API offers you, e.g. substring and *indexOf.

How to parse xml string using JSTL

Suppose this is my string:-----
<books>
<book>
<title id=1>Book Title A</title>
<author>A. B. C.</author>
<price>17.95</price>
</book>
<book>
<title id=2>Book Title B</title>
<author>X. Y. Z.</author>
<price>24.99</price>
</book>
</books>
and I want to read title id = 1 then, how to parse it, I found tutorials regarding parsing simple xml document but how to parse attributes of a given XML

But both of them either parse a file or data from an input source. I don't think they handle strings.An InputSource can be constructed with a Reader as input. One useful subclass of Reader is StringReader, so you'd use something likeDocument doc = documentBuilder.parse(new InputSource(new StringReader(myXMLString)));

How to parse a string in CVP 7.0(1). Is there a built-in java class, other?

Hi,
I need to parse,in CVP 7.0(1), the BAAccountNumber variable passed by the ICM dialer. Is there a built-in java class or other function that would help me do this?
Our BAAccountNumber variable looks something like this: 321|XXX12345678|1901|M. In IP IVR I use the "Get ICM Data" object to read the BAAccountNumber variable from ICM and then I use the "token index" feature to parse the variable (picture below).
Alternately, IP IVR also has a Java class that allows me to do this; the class is "java.lang.String" and the method is "public int indexOf(String,int)"
Is there something equivalent in CVP 7.0(1)?
thanks

Thanks again for your help. This is what I ended up doing:
This configurable action element takes a string seperated by two "|" (123|123456789|12)
and returns 3 string variables.
you can add more output variables by adding to the Setting array below.
// These classes are used by custom configurable elements.
import com.audium.server.session.ActionElementData;
import com.audium.server.voiceElement.ActionElementBase;
import com.audium.server.voiceElement.ElementData;
import com.audium.server.voiceElement.ElementException;
import com.audium.server.voiceElement.ElementInterface;
import com.audium.server.voiceElement.Setting;
import com.audium.server.xml.ActionElementConfig;
public class SOMENAMEHERE extends ActionElementBase implements ElementInterface
     * This method is run when the action is visited. From the ActionElementData
     * object, the configuration can be obtained.
    public void doAction(String name, ActionElementData actionData) throws ElementException
        try {
            // Get the configuration
            ActionElementConfig config = actionData.getActionElementConfig();
            //now retrieve each setting value using its 'real' name as defined in the getSettings method above
            //each setting is returned as a String type, but can be converted.
            String input = config.getSettingValue("input",actionData);
            String resultType = config.getSettingValue("resultType",actionData);
            String resultEntityID = config.getSettingValue("resultEntityID",actionData);
            String resultMemberID = config.getSettingValue("resultMemberID",actionData);
            String resultTFNType = config.getSettingValue("resultTFNType",actionData);
            //get the substring
            //String sub = input.substring(startPos,startPos+numChars);
            String[] BAAcctresults = input.split("\\|");
            //Now store the substring into either Element or Session data as requested
            //and store it into the variable name requested by the Studio developer
            if(resultType.equals("Element")){
                actionData.setElementData(resultEntityID,BAAcctresults[0]);
                actionData.setElementData(resultMemberID,BAAcctresults[1]);
                actionData.setElementData(resultTFNType,BAAcctresults[2]);
            } else {
                actionData.setSessionData(resultEntityID,BAAcctresults[0]);
                actionData.setSessionData(resultMemberID,BAAcctresults[1]);
                actionData.setSessionData(resultTFNType,BAAcctresults[2]);
            actionData.setElementData("status","success");
        } catch (Exception e) {
            //If anything goes wrong, create Element data 'status' with the value 'failure'
            //and return an empty string into the variable requested by the caller
            e.printStackTrace();
            actionData.setElementData("status","failure");
    public String getElementName()
        return "MEDDOC PARSER";
    public String getDisplayFolderName()
        return "SSC Custom";
    public String getDescription()
        return "This class breaks down the BAAccountNumber";
    public Setting[] getSettings() throws ElementException
         //You must define the number of settings here
         Setting[] settingArray = new Setting[5];
          //each setting must specify: real name, display name, description,
          //is it required?, can it only appear once?, does it allow substitution?,
          //and the type of entry allowed
        settingArray[0] = new Setting("input", "Original String",
                   "This is the string from which to grab a substring.",
                   true,   // It is required
                   true,   // It appears only once
                   true,   // It allows substitution
                   Setting.STRING);
        settingArray[1] = new Setting("resultType", "Result Type",
                "Choose where to store result \n" +
                "into Element or Session data",
                true,   // It is required
                true,   // It appears only once
                false, // It does NOT allow substitution
                new String[]{"Element","Session"});//pull-down menu
        settingArray[1].setDefaultValue("Session");
        settingArray[2] = new Setting("resultEntityID", "EntityID",
          "Name of variable to hold the result.",
          true,   // It is required
          true,   // It appears only once
          true,   // It allows substitution
          Setting.STRING);
        settingArray[2].setDefaultValue("EntityID");
        settingArray[3] = new Setting("resultMemberID", "MemberID",
                "Name of variable to hold the result.",
                true,   // It is required
                true,   // It appears only once
                true,   // It allows substitution
                Setting.STRING);
        settingArray[3].setDefaultValue("MemberID");
        settingArray[4] = new Setting("resultTFNType", "TFNType",
                  "Name of variable to hold the result.",
                  true,   // It is required
                  true,   // It appears only once
                  true,   // It allows substitution
                  Setting.STRING);
        settingArray[4].setDefaultValue("TFNType");
return settingArray;
    public ElementData[] getElementData() throws ElementException
        return null;

How to parse a String help

I'm trying to find an easy way to parse a string like this
String, brand,model, number;
String toParse=(Sony)(VZ-12324)(1);Is there a simple way of parsing the string to the "(" and ")" are omitted and brand=Sony;
model=VZ-12324);
number="1";
???

String toParse = "(Sony)(VZ-12324)(1)";
String[] parts = toParse.split("[()]");
String brand = parts[1];
String model = parts[3];
int number = Integer.parseInt(parts[5]);
System.out.println(brand);
System.out.println(model);
System.out.println(number);

Problem with SAX parser with String format

hi, all I have the next problem:
I try to parse xml file with success, I write next code:
====================
my_class saxUms = new my_class();
File file = new File( "c:\\my_try_Response.xml" );
InputSource src1 = new InputSource( new FileInputStream( file ) );
XMLReader rdr = XMLReaderFactory.createXMLReader( "org.apache.xerces.parsers.SAXParser" ); rdr.setContentHandler( saxUms );
rdr.parse(src1);
===================
but when I try to parse the same in string variable, I write:
===================
my_class saxUms = new my_class();
StringReader strr = new StringReader(my_str);
InputSource intt = new InputSource(strr);
XMLReader prs= XMLReaderFactory.createXMLReader( "org.apache.xerces.parsers.SAXParser" );
prs.setContentHandler(saxUms);
prs.parse(intt);
===================
and error occurs:
"Exception: java.lang.ClassCastException: java.lang.StringBuffer"
how to fix the problem?
Thank you for collaboration!

where does the exception stack trace say the error is occurring?

Help: How to parse XML string into Node Context

Hi Experts,
I am trying to work with a web dynpro for java application which calls a Web Service. I can call the web service successfully, however I have a problem on interpreting the response result into table. The response result is in (XML) string format, like this:
I followed this , but it resulted to an error:
com.sap.engine.lib.xml.parser.NestedSAXParserException: Fatal Error: com.sap.engine.lib.xml.parser.ParserException: Name expected: 0x20(:main:, row:158, col:59)(:main:, row=158, col=59) -> com.sap.engine.lib.xml.parser.ParserException: Name expected: 0x20(:main:, row:158, col:59)
do anyone of you had a similar experience and were able to resolve it, please post it here. it will be highly appreciated. thanks in advance.

Try this :
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new org.xml.sax.InputSource(new StringReader(strXml)));Hope this helps.

How to parse XML string fetched from the database

i want to parse the XML string which is fetched from the oracle database.
i have inserted the string in xml format in the database. The type of the field in which it is inserted is varchart2.
I am successfully getting it using jdbc, storing it in a String.
Now it is appended with xml version 1.0 and string is ready for parsing.
Now i am making following programming.
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = Builder.parse(xmlString);
Element root = doc.getDocumentElement();
NodeList node = root.getElementsByTagName("product");
But i am getting IOException at the statement
Document doc = Builder.parse(xmlString);
there fore i request u to kindly help me in solving this error.
-regards
pujan

DocumentBuilder does not have a method parse with xml string as aparameter. The string should be a xml document uri.
Convert xml string to StringReader.
parse(new InputSource(new StringReader(xmlString)));

How to parse a string?

Hi everyone,
I would like to get only small parts from the whole string. For example, I have "x y", and I would like to put x in a variable, and y in another one, by giving x and y their type (integer).
Thank you for your answer.

Thanks for your reply, it was helpful!
I could do it simply with split, and it looks like that:
String []splits = line.split("\t");
System.out.println(splits[0]); --> takes the first part of the string, which is x
System.out.println(splits[1]); --> takes the second part of the string, which is y

Parsing a string using StringTokenizer

Hi,
I want to parse a string such as
String input = ab{cd}:"abc""de"{
and the extracted tokens should be as follows
ab
cd
"abc""de"
As a result, I used the StringTokenizer class with deilmeter {,},:
StringTokenizer tokenizer = new StringTokenizer(input,"{}:", true);
In this was, I can separate the tokens and also can get the delimeters. The problem is I don't know how to parse the string that has double quote on it. If a single quote " is taken as a delimeter then
", abc, ",", de," all of them will be taken as a separate token. My intention is to get the whole string inside the double quote as a token including the quotes on it. Moreover, if there is any escape character "", it should be also included in the token. Help please.
Thanks

A bit of a "sticky tape"-solution...
import java.util.StringTokenizer;
public class Test {
    public static void main(String[] args) {
        String input = "ab{cd}:\"abc\"\"de\"";
        StringTokenizer st = new StringTokenizer(input, "{}:", true);
        while(st.hasMoreTokens()) {
        String token = st.nextToken();
        if(token.startsWith("\"") && token.endsWith("\"")) {
        token = token.substring(1,token.length()-1);
            System.out.println(token);
}

How to Break this String and put into a Table

Hi all,
Currently i working on the Reading of Csv file.THe Csv file wil be stored as BLOB in one table.
The Format of the Csv file is
EMPCODE :DATEOFBIRTH
312089 ,12/01/1984
321456 ,03/05/1980
120212 ,04/08/1987
312456 ,23/12/1977
311110 ,12/04/1998
323232 ,20/06/1990
UPLOAD_BLOB
column Datatype
UploadId Number
File_details BLOB
And i reading the BLOB in one procedure and i m getting the String as like this ---->
"312089 ,12/01/1984
321456 ,03/05/1980
120212 ,04/08/1987
312456 ,23/12/1977
311110 ,12/04/1998
323232 ,20/06/1990"
I am Dont know how to Parse this String and put in table
While 1<STRING.LENGTH
LOOP
EMPCODE=SUBSTRING();
DATEOFBIRTH=SUBSTRING();
INSERT INTO TABLE VALID_EMPCODE(EMPCODE,DATEOFBIRTH)VALUES(......);END LOOP
VALID_EMPCODE
EMPCODE VARCHAR2(30)
DATEOFBIRTH VARCHAR2(15)
Can any one tell me how to parse this whole string and break them

Duplicate post
How to Break this String and put into a Table

How to parse characters non ascii in a string

i am stucked in this crictical problem and i don't know how to cater this. I sometimes receive this String ��►☻☺ and sometimes these are non US-ASCII characters. These ��►☻☺ characters are replaced by ????? and is represented as it is. I sometime receive this character �� too. These characters are in ANSI list but i want to receive only US-ASCII. Please help me out that how to identify these characters in the string.

Basically i am getting that string from the user in an sms. The text of the sms is saved in the database.I get that sms from database in string form. now i want to parse the string to identify the non us-ascii characters in the string. This parsing is important because when i try to post data on the url i get the http response code 400 which creates an exception and i get stucked in an infinite while loop.
HttpURLConnection urlcon =null;
String postingdata="&message="+ URLEncoder.encode(ob.getmessage(),"UTF-8")
System.out.println(postingdata);
URL url = new URL("http://someurl");
urlcon = (HttpURLConnection)url.openConnection();
urlcon.setDoOutput(true);
urlcon.setRequestMethod("POST");
OutputStreamWriter wr = new OutputStreamWrite(urlcon.getOutputStream());
wr.write(postingdata);
wr.flush();
BufferedReader rd = new BufferedReader(new InputStreamReader(urlcon.getInputStream()));
rd.close();
wr.close();

Is there a problem on the pattern of SimpleDateFormat to parse a String ?

Hello,
I tried to parse a String to a Date using a SimpleDateFormat.
I must be able to have on the pattern something like : "yyyyMMdd_HH00".
To get a String from a Date with SimpleDateFormat.format(Date date) it works well, but when a try to parse a String into a Date with SimpleDateFormat.parse(String date) I get a : java.text.ParseException: Unparseable date.
I try it on a JVM 1.4 and 1.5 for the same result.
An exemple of code :
          String pattern = "yyyyMMdd_HH00";
          SimpleDateFormat currentFormat = new SimpleDateFormat(pattern);
          Date date = currentFormat.parse("20091223_1000");It seems that adding the '00' after 'HH' raise the exception...
Has the 'HH00' a particular meaning like on Oracle 'HH24' ?
Is there a way to add number after the 'HH' ?
Thanks
Edit :
Oh yeah, I forgot, I tryied to use the pattern "yyyyMMdd_HH'00'" using '' to escape the 00 without better result...
Edited by: Jeremy.Antonucci on 23 déc. 2009 15:25

The context of this pattern :
To get a file on a http server, I must build an Url String with a filename using the current date.
I want to be able to change easily the pattern on a file parameters.
The date must be ending with 00 for the minutes.
I may have use a pattern with 'HHmm' and suppress the minutes but if it is change on the futur the code will not work...
As I can't say if in the futur the url will change for the date pattern or not, I decide to use a pattern like "yyyyMMdd_HH00" that works fine for everything else than parsing a string.
I create a String date based on the current date on UTC using this pattern and keep it to use it to compose an Url String.
After I need to know how much time I must sleep before the next execution (on each Hour), so I use this date +1 hour to see if the currentDate during this calculation is higher than this date+1... (I'm surely not clear, but it is not the real problem just for curious ^^)
A dirty solution is to avoid this problem is to catch this case and do substitution on a temporary pattern of the 'HH00' with 'HHmm'. It's really dirty because nothing says that later a 'HH00' mean always 'HHmm' but I have nothing better...
          String pattern2 = pattern;
          if (pattern.matches(".*HH00$")) {
               pattern2=pattern.substring(0, (pattern.length()-2))+"mm";
          }Where can I do this bug report ?
Do you see a good solution ?

DOM problem: How to parse a string

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