我是edi数据的新手.我使用smooks api来读取edi数据并能够将其解析为
java对象.我想将
java对象转换为edi数据,因为我没有获得太多信息.这是我试图从edi文件中读取并创建java对象的示例 –
customOrder.edi - COR*130*PINGPONG02*You got it to work*1230
---------------
POJO -
------
public class CustomOrder implements Serializable{
private int number;
private String sender;
private String message;
private int price;
// setter and getter
}
custom-order-mapping.xml -
-------------------------
<?xml version="1.0" encoding="UTF-8"?><medi:edimap xmlns:medi="http://www.milyn.org/schema/edi-message-mapping-1.3.xsd">
<medi:description name="DVD Order" version="1.0" />
<medi:delimiters segment=" " field="*" component="^" sub-component="~" />
<medi:segments xmltag="CustomOrder">
<medi:segment segcode="COR" xmltag="co">
<medi:field xmltag="number" />
<medi:field xmltag="sender" />
<medi:field xmltag="message" />
<medi:field xmltag="price" />
</medi:segment>
</medi:segments>
</medi:edimap>
smooks-config.xml -
------------------
<?xml version="1.0"?>
<smooks-resource-list
xmlns="http://www.milyn.org/xsd/smooks-1.1.xsd"
xmlns:edi="http://www.milyn.org/xsd/smooks/edi-1.1.xsd"
xmlns:jb="http://www.milyn.org/xsd/smooks/javabean-1.2.xsd"
xmlns:core="http://www.milyn.org/xsd/smooks/smooks-core-1.4.xsd">
<edi:reader mappingModel="/example/custom-order-mapping.xml" />
<jb:bean beanId="customer" class="example.model.CustomOrder" createOnElement="co">
<!-- Customer bindings... -->
<jb:value property="number" data="#/number" decoder="Integer"/>
<jb:value property="sender" data="#/sender" decoder="String"/>
<jb:value property="message" data="#/message" decoder="String"/>
<jb:value property="price" data="#/price" decoder="Integer"/>
</jb:bean>
</smooks-resource-list>
Main method -
--------------
Main smooksMain = new Main();
ExecutionContext executionContext = smooksMain.smooks.createExecutionContext();
org.milyn.payload.JavaResult result = smooksMain.runSmooksTransform(executionContext);
CustomOrder custOrder = (CustomOrder) result.getBean("customer");
// Need to get to edi data from java object custOrder
// Please help me - this part of code
我想从java对象准备edi数据.如果除了Smooks之外的任何其他api /框架也会这样做,那对我来说没问题.请告诉我,谢谢.
最佳答案 我搜索了它并从smooks论坛了解到要从java对象准备edi数据,我们必须使用Edifact Java Compiler(EJC).
上面的例子是从edi数据准备java对象.
Pojo类必须实现EDIWritable并覆盖write方法.这是改变的Pojo类 –
public class CustomOrder implements Serializable, EDIWritable{
private int number;
private IntegerDecoder numberDecoder;
private String sender;
private String message;
private int price;
private IntegerDecoder priceDecoder;
public CustomOrder() {
numberDecoder = new IntegerDecoder();
priceDecoder = new IntegerDecoder();
}
public int getNumber() {
return number;
}
public void setNumber(int number) {
this.number = number;
}
public void setSender(String sender) {
this.sender = sender;
}
public String getSender() {
return sender;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public int getPrice() {
return price;
}
public void setPrice(int price) {
this.price = price;
}
public void write(Writer writer, Delimiters delimiters) throws IOException {
// TODO Auto-generated method stub
Writer nodeWriter = writer;
if(number != 0) {
nodeWriter.write(delimiters.escape(numberDecoder.encode(number)));
}
nodeWriter.write(delimiters.getField());
if(sender != null) {
nodeWriter.write(delimiters.escape(sender.toString()));
}
nodeWriter.write(delimiters.getField());
if(message != null) {
nodeWriter.write(delimiters.escape(message.toString()));
}
nodeWriter.write(delimiters.getField());
if(price != 0) {
nodeWriter.write(delimiters.escape(priceDecoder.encode(price)));
}
//nodeWriter.write(delimiters.getField());
writer.write(delimiters.getSegmentDelimiter());
writer.flush();
}
}
接下来,我们必须准备pojo类的工厂 –
CustomOrderFactory
public class CustomOrderFactory {
private Smooks smooks;
private Delimiters delimiters;
public static CustomOrderFactory getInstance() throws IOException, SAXException {
return new CustomOrderFactory();
}
public void addConfigurations(InputStream resourceConfigStream) throws SAXException, IOException {
smooks.addConfigurations(resourceConfigStream);
}
public void toEDI(CustomOrder instance, Writer writer) throws IOException {
instance.write(writer, delimiters);
}
private CustomOrderFactory() throws IOException, SAXException {
smooks = new Smooks(CustomOrderFactory.class.getResourceAsStream("smooks-config.xml"));
System.out.println("smooks is prepared");
try {
Edimap edimap = EDIConfigDigester.digestConfig(CustomOrderFactory.class.getResourceAsStream("custom-order-mapping.xml"));
System.out.println("ediMap is prepared");
delimiters = edimap.getDelimiters();
System.out.println("delimeter is prepared");
} catch(EDIConfigurationException e) {
IOException ioException = new IOException("Exception reading EDI Mapping model.");
ioException.initCause(e);
throw ioException;
}
}
}
一旦CustomOrder对象准备就绪,如上面Main类中所示.我们必须使用此对象转换为edi数据格式.这是完整的主类 –
Main class
----------
Main smooksMain = new Main();
ExecutionContext executionContext = smooksMain.smooks.createExecutionContext();
org.milyn.payload.JavaResult result = smooksMain.runSmooksTransform(executionContext);
CustomOrder custOrder = (CustomOrder) result.getBean("customer");
// Prepare edi data from java object custOrder
CustomOrderFactory customOrderFactory = CustomOrderFactory.getInstance();
OutputStream os = new FileOutputStream("createdEDIFile.edi");
customOrderFactory.toEDI(custOrder, new OutputStreamWriter(os));
System.out.println("Edi file is created from java object");
而已.希望它会有所帮助.谢谢.
