| 发表于：2007-04-01 02:17:49 楼主 |
我有一个xml 的文件当我用java sax 把它的资料拿出的时候遇到 <manager/> 这个是代表什么意思呢？我应该怎么把是不是manager这个元素拿出来呢 拿出来呢？
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xml 文件
<?xml version = "1.0 " standalone = "yes "?>
<!doctype company [
<!element company （department+)>
<!element department （stafflist)>
<!attlist department
name cdata #required
>
<!element stafflist （fulltimestaff ¦parttimestaff)+>
<!element fulltimestaff （name, id, salary, manager?)>
<!element parttimestaff （name, id, hourlysalary)>
<!element salary （#pcdata)>
<!element id （#pcdata)>
<!element name （#pcdata)>
<!element manager empty>
<!element hourlysalary （#pcdata)>
]>
<company>
<department name = "product development ">
<stafflist>
<fulltimestaff>
<name> john tan seng huat </name>
<id> s6512345j </id>
<salary> 4500.00 </salary>
<manager/>
</fulltimestaff>
<fulltimestaff >
<name> peter chua sim lai </name>
<id> s6934345c </id>
<salary> 2800.00 </salary>
</fulltimestaff>
<parttimestaff>
<name> cindy lam lian choo </name>
<id> s6734322k </id>
<hourlysalary> 35.00 </hourlysalary>
</parttimestaff>
<fulltimestaff >
<name> anisah bte ismail </name>
<id> s6922339b </id>
<salary> 3100.00 </salary>
</fulltimestaff>
</stafflist>
</department>
<department name = "customer service ">
<stafflist>
<fulltimestaff>
<name> noor ali bin mohamed </name>
<id> s6412388j </id>
<salary> 4200.00 </salary>
<manager/>
</fulltimestaff>
<fulltimestaff>
<name> hanisah bte salleh </name>
<id> s6934311f </id>
<salary> 1800.00 </salary>
</fulltimestaff>
</stafflist>
</department>
<department name = "sales and publicity ">
<stafflist>
<fulltimestaff>
<name> linda peh xue li </name>
<id> s6423451j </id>
<salary> 3500.00 </salary>
<manager/>
</fulltimestaff>
<fulltimestaff>
<name> thomas lye meng poh </name>
<id> s7234344f </id>
<salary> 1800.00 </salary>
</fulltimestaff>
<parttimestaff>
<name> eugene oliver john </name>
<id> s7533213f </id>
<hourlysalary> 12.00 </hourlysalary>
</parttimestaff>
<parttimestaff>
<name> mariah bte syafik </name>
<id> s7835613c </id>
<hourlysalary> 10.00 </hourlysalary>
</parttimestaff>
</stafflist>
</department>
</company>
-----------------------------
java 文件
package tma02q3jan2007;
import java.util.*;
import org.xml.sax.*;
import java.text.numberformat;
public class staffdataprocessor extends handlerbase{
// instance variables, if any
string department;
double salary;
string id;
string name;
boolean ismanager=true;
double hourlysalary;
string tag;
//flags to indicate where we are
boolean hasattribute;
//create staffdata
staffdata data;
public static void main（string[] args){
//main method
//sets up the xml parser and connects it to the file catalogue.txt
try
{
class loadedclass = class.forname（ "com.ibm.xml.parser.saxdriver ");
parser xparser = （parser)loadedclass.newinstance（);
staffdataprocessor sdp = new staffdataprocessor（);
xparser.setdocumenthandler（sdp);
xparser.seterrorhandler（sdp);
xparser.parse（ "company.txt ");
}
catch（exception e)
{system.out.println（ "problem starting xml processor "+e.getmessage（));}
}
public void error（saxparseexception se){
// ＥＸＥＣuted when a serious error occurs in processing the
// xml source
system.out.println（ "error: problem in processing "
+se.getmessage（));
}
public void warning（saxparseexception se){
// ＥＸＥＣuted when a minor problem occurs when processing the
// xml source
system.out.println（ "warning: problem in processing "
+se.getmessage（));
}
public void startdocument（) throws saxexception{
//ＥＸＥＣuted when the start of an element is encountered
data=new staffdata（);
system.out.println（ "...processing started ");
}
public void startelement（string elementname, attributelist al) throws saxexception{
//ＥＸＥＣuted when the start of an element is encountered
tag = elementname;
if （elementname.equals（ "department ")){
// check whether there is any attributes
if （al.getlength（) == 1) {
hasattribute = true;
department =al.getvalue（0);
}
else hasattribute = false;
}
}
public void endelement（string elementname) throws saxexception{
//ＥＸＥＣuted when the end of an element is encountered
if （elementname.equals（ "parttimestaff ")) {
data.createparttimestaffrecord（department,name,id,hourlysalary);
// should add the information here to the database,
// since the xml record has been read
//if（elementname.equals（ "stafflist ")){
//data.createparttimestaffrecord（department,name,id,hourlysalary);
// if （hasattribute){
//if（elementname.equals（ "parttimestaff ")){
//data.createparttimestaffrecord（department,name,id,hourlysalary);
// }
}
else if（elementname.equals（ "fulltimestaff ")){
if（elementname.equals（ "manager "))
data.createfulltimestaffrecord（department,name,id,salary,true);
else data.createfulltimestaffrecord（department,name,id,salary,false);
}
// }
//}
}
public void enddocument（) throws saxexception{
numberformat nf = numberformat.getinstance（);
nf.setmaximumfractiondigits（2);
nf.setminimumfractiondigits（2);
string partdetail=data.getdetails（ "parttimestaff ");
system.out.println（partdetail);
system.out.println（ " ");
double parttotalsalary=data.gettotalsalary（ "parttimestaff ");
system.out.println（ "total hourlysalary "+nf.format（parttotalsalary));
system.out.println（ " ");
system.out.println（ " ");
string fuldetail=data.getdetails（ "fulltimestaff ");
system.out.println（fuldetail);
system.out.println（ " ");
double fultotalsalary=data.gettotalsalary（ "fulltimestaff ");
system.out.println（ "total monthly salary "+nf.format（fultotalsalary));
//ＥＸＥＣuted when processing is finished
system.out.println（ " ");
system.out.println（ "...finished processing document ");
}
public void characters（char[] chars, int start, int length)throws
saxexception{
//string processing
string stringread = new string（chars, 0, length);
string s= " ";
boolean ismanager=true;
//check flags and save as per flag status
if （tag.equals（ "name "))
name = stringread;
else if （tag.equals（ "id "))
id = stringread;
else if （tag.equals（ "manager/ "))
stringread= "**manager** ";
else if（tag.equals（ "salary "))
salary =double.parsedouble（stringread);
else if（tag.equals（ "hourlysalary "))
hourlysalary=double.parsedouble（stringread);
}
}
请高人指教。
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