使用LinkedHashMap而不是HashMap作为Swagger字典类型（Java codegen）？

Question

我使用的是openapi 3.0.2和codegen插件：

<groupId>io.swagger.codegen.v3</groupId>
<artifactId>swagger-codegen-maven-plugin</artifactId>
<version>3.0.14</version>

我使用的是这里描述的swagger Dictionary/HashMap类型：

openapi: "3.0.2"
...
Labels:
    type: object
    additionalProperties:
        type: string
        minLength: 1
    description:  A description.

@ApiModel(description = "A description.")
@Validated
@javax.annotation.Generated(value = "io.swagger.codegen.v3.generators.java.SpringCodegen", date = "2020-02-26T12:17:36.248Z[Europe/London]")
public class Labels extends HashMap<String, String>  {
...
}

我想在将这本词典归还给客户时控制其条目的顺序。

Answer 1

我使用了一个maven插件来修改生成的文件：

<plugin>
        <groupId>org.codehaus.gmavenplus</groupId>
        <artifactId>gmavenplus-plugin</artifactId>
        <executions>
                <execution>
                        <id>modify-swagger</id>
                        <phase>generate-sources</phase>
                        <goals>
                                <goal>execute</goal>
                        </goals>
                        <configuration>
                                <properties>
                                        <property>
                                                <name>targetDir</name>
                                                <value>${project.build.directory}</value>
                                        </property>
                                </properties>
                                <scripts>
                                        <script><![CDATA[
                                                def labelsFile = new File(targetDir
                                                                + "/swagger-codegen/src/main/java/com/acme/models/Labels.java")
                                                def labelsFileContents = labelsFile.text
                                                if (labelsFileContents == null) {
                                                        throw Exception();
                                                }

                                                def newLabelsFileContents = labelsFileContents.replaceAll('HashMap', 'LinkedHashMap')
                                                labelsFile.write(newLabelsFileContents)
                                        ]]></script>
                                </scripts>
                        </configuration>
                </execution>
        </executions>
</plugin>