I am trying to generate a spring boot project using the below yaml file on

CodePudding user response：

I guess you didnt C&P correctly.

I just setup a test project with your file and used openapi-generator-cli.jar With the command:

java -jar openapi-generator-cli.jar generate -i stack.yml -g spring -p java8=true

I created the project and the Error class is showing up:

package org.openapitools.model;
import java.util.Objects;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonCreator;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import org.openapitools.jackson.nullable.JsonNullable;
import javax.validation.Valid;
import javax.validation.constraints.*;

/**
 * Error
 */
@javax.annotation.Generated(value = "org.openapitools.codegen.languages.SpringCodegen", date = "2022-04-05T08:34:53.094779300 02:00[Europe/Berlin]")
public class Error   {
  @JsonProperty("id")
  private String id;

  @JsonProperty("message")
  private String message;

  public Error id(String id) {
    this.id = id;
    return this;
  }

  /**
   * Unique id to represent a type of error
   * @return id
  */
  @ApiModelProperty(example = "bad_request", value = "Unique id to represent a type of error")


  public String getId() {
    return id;
  }

  public void setId(String id) {
    this.id = id;
  }

  public Error message(String message) {
    this.message = message;
    return this;
  }

  /**
   * Meaningful message about what went wrong
   * @return message
  */
  @ApiModelProperty(example = "dealer id already exists", value = "Meaningful message about what went wrong")


  public String getMessage() {
    return message;
  }

  public void setMessage(String message) {
    this.message = message;
  }


  @Override
  public boolean equals(java.lang.Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }
    Error error = (Error) o;
    return Objects.equals(this.id, error.id) &&
        Objects.equals(this.message, error.message);
  }

  @Override
  public int hashCode() {
    return Objects.hash(id, message);
  }

  @Override
  public String toString() {
    StringBuilder sb = new StringBuilder();
    sb.append("class Error {\n");
    
    sb.append("    id: ").append(toIndentedString(id)).append("\n");
    sb.append("    message: ").append(toIndentedString(message)).append("\n");
    sb.append("}");
    return sb.toString();
  }

  /**
   * Convert the given object to string with each line indented by 4 spaces
   * (except the first line).
   */
  private String toIndentedString(java.lang.Object o) {
    if (o == null) {
      return "null";
    }
    return o.toString().replace("\n", "\n    ");
  }
}

Moreover I was able to start and receive the schema: