找出在哪里放置equalsIgnoreCase（）以避免區分大小寫

Question

我正在使用Spring 4，並使用以下URL進行API調用

我有一個Java枚舉類，其定義如下：

http://localhost.com:8080/int/fin/trs?bId=B-XYZ&sortBy=currentTs

而且，我有控制器方法，此調用正在接收參數：

public ResponseEntity<SetRESTData<FinancialTransactionDTO>> getTFIUse(

    @RequestParam(value = "status", required = false) final String statusString,
    @RequestParam(value = "transactionMappableEnumthod", required = false) final String transactionMappableEnumthodString,
    @RequestParam(value = "sortBy", required = false) final String orderBy,
    @RequestParam(value = "sortDirection", required = false) final String sortDirectionString) {


    final FinancialTransactionPaginationData paginationData = StringUtils.isBlank(orderBy) ?
      null : new FinancialTransactionPaginationData(FinancialTransactionSortableField.fromCode(orderBy), null, null, sortDirectionString);


  }

FinancialTransactionSortableField類如下：

public enum FinancialTransactionSortableField implements MappableEnum<FinancialTransactionSortableField>, SF {

  ID(DefaultSortableField.ID.getCode(), "T Id", DefaultSortableField.ID.getColumnNaMappableEnum()),
  CREATED_TS(DefaultSortableField.CREATED_TS.getCode(),
             DefaultSortableField.CREATED_TS.getDescription(),
             DefaultSortableField.CREATED_TS.getColumnNaMappableEnum()),;

DefaultSortableField枚舉類定義如下：

public enum DefaultSortableField implements MappableEnum<DefaultSortableField>, SF {


  CREATED_TS("CreatedTs", "Created Timestamp", "CreatedTs"),;

  private final String code;
  private final String description;
  private final String columnName;

  private static final Map<String, DefaultSortableField> cmap =
    MappableEnum.buildCodeMap(DefaultSortableField.class);

  private DefaultSortableField(final String code, final String description, final String columnName) {
    this.code = code;
    this.description = description;
    this.columnName = columnName;
  }

  @JsonValue
  @Override
  public String getCode() {
    return code;
  }

  @Override
  public String getDescription() {
    return description;
  }

  @Override
  public String getColumnName() {
    return columnName;
  }

  @Override
  public DefaultSortableField toEnum(final String code) {
    return fromCode(code);
  }

  @JsonCreator
  public static DefaultSortableField fromCode(final String code) {
    return cmap.get(code);
  }

  }

我基本上是在進行api調用，例如http://localhost.com:8080/int/fin/trs?bId=B-XYZ&sortBy=CreatedTs，所以當代碼執行到達FinancialTransactionSortableField的方法DefaultSortableField.CREATED_TS.getCode（）時，類，CreatedTs值（這是DefaultSortableField CREATED_TS枚舉聲明中的枚舉的第一個參數）被返回。到目前為止，一切都很好。但是，當我在上面的URL中傳遞sortBy = createdTs（注意小寫c）時，它沒有我正在嘗試找出在哪里使用equalsIgnoreCase（）方法，它將在FinancialTransactionSortableField類中的某個位置，還是在此行上的DefaultSortableField.CREATED_TS.getCode（）

Answer 1

@JsonCreator
public static DefaultSortableField fromCode(final String code) {
    for(String key : cmap.keySet()){
        if(code.equalsIgnoreCase(key)){
            return cmap.get(key);
        }
    }
    return null;
}