QuickFixJ 2.0.1中MassQuote重复组自定义字段配置问题求助

Hey there, let's work through this QuickFixJ issue you're facing with custom fields in the NoQuoteEntries group. I've been in your shoes before—tinkering with FIX dictionaries and Maven builds can feel like navigating a maze when you're new to it. Here's a step-by-step solution to get your custom fields working properly:

First, make sure your custom field setup in the FIX50SP2 (or modified) dictionary is correct:

• Verify your new field is defined in the <fields> section of the XML (e.g., <field number="12345" name="MyCustomQuoteField" type="STRING"/>).
• Confirm the field is added to the correct position inside the <group name="NoQuoteEntries"> node—this is critical for maintaining the required field order.
• If using FIX50SP2.modified.xml, ensure it properly extends the base FIX50SP2.xml (no missing parent references or invalid XML syntax).

You mentioned replacing the dictionaries and re-packaging, but QuickFixJ relies on code generated directly from the dictionaries. Simply replacing XML files won't update the NoQuoteEntries class—you need to re-run the code generator:

1. Open a terminal in your cloned QuickFixJ 2.0.1 root directory.
2. Run this Maven command to clean old generated code and build fresh classes:

   mvn clean generate-sources
   

3. Wait for the generator to finish—this will rebuild all message, group, and field classes based on your updated dictionaries.

Head to the generated code directory to confirm your custom fields are included:

• Navigate to quickfixj-core/target/generated-sources/quickfixj/org/quickfix/fix50sp2/
• Open NoQuoteEntries.java and check for:
  • Getter/setter methods for your custom fields (e.g., setMyCustomQuoteField(String value) and getMyCustomQuoteField())
  • Your custom fields listed in the correct order in the class's field definitions

If these are missing, go back to your dictionary XML—you likely have a syntax error, a missing field definition, or an incorrect group placement.

Once the generated code looks good:

1. Run mvn package to build a new version of the QuickFixJ core JAR.
2. Replace the old quickfixj-core-2.0.1.jar in your project with this new JAR.

For receiving messages with your custom group fields:

• Ensure your QuickFix configuration file points to your modified dictionary (set DataDictionary to the path of your updated FIX50SP2.xml/modified.xml).
• When parsing incoming messages, the generated NoQuoteEntries class will now correctly map the custom fields in the right order, and you'll be able to use the getter methods to access their values directly.

A quick tip for Maven newbies: If you run into build errors, check the terminal output closely—Maven will usually tell you exactly what's wrong (e.g., invalid XML in the dictionary, missing dependencies).

内容的提问来源于stack exchange，提问作者Tobin