📅 最后修改于: 2020-12-26 13:37:52 🧑 作者: Mango
Apache Ant提供了丰富的类型集，下面提供了其中的一些类型。我们可以使用它们来处理数据，文件，路径等，也可以用作服务。
| Type | Description |
|---|---|
| ClassFileSet | It is used to create Jar with all required classes. |
| DirSet | It groups the directories. |
| FileList | A list of files. |
| FileSet | A group of files. |
| FileMapper | It helps to map source and target file. |
| FilterSet | A group of filters. |
| PatternSet | A group of patterns that are referenced by ids. |
| Selectors | A FileSet element, helps to select elements |
| TarFileSet | It is a special form of a FileSet. |
| ZipFileSet | A set of zip files. |
ClassFileSet是FileSet的一种特殊类型，它包括根类所依赖的所有类文件。它用于创建具有特定应用程序所有必需类的JAR。
由ID值声明ClassFileSet，然后将其用作参考。
DirSet是一组目录。它支持
| Attribute | Description | Required |
|---|---|---|
| dir | It holds root of the directory tree of this DirSet | Yes |
| includes | A list of patterns of directories. | No |
| includesfile | Name of a file which is to be included. | No |
| excludes | A list of patterns of directories that must be excluded. | No |
| excludesfile | Name of a file which is to be excluded. | No |
| casesensitive | It is used to specify whether case-sensitivity should be applied or not. | No |
| follosymlinks | It holds a symbolic link to be followed. | No |
| erroronmissingdir | It specifies what happens if the base directory does not exist. | No |
本示例将在$ {build.dir}的apps子目录中找到的所有目录名称类分组，并排除名称中具有test的目录。
FileList是文件列表(集合)。它可以与
| Attribute | Description | Required |
|---|---|---|
| dir | It is used to hold base directory of this list. | Yes |
| files | List of file names | Yes |
FileSet是来自单个根目录的一组文件。它根据Ant指定的模式集收集文件。
文件集具有以下属性。
| Attribute | Description | Required |
|---|---|---|
| dir | It holds root directory the FileSet. | Either dir or file must be specified. |
| file | For specifying a single-file fileset. | Either dir or file must be specified. |
| includes | A list of patterns of files that must be included. | No |
| includesfile | A file name. | No |
| excludes | A list of patterns of files that must be excluded. | No |
| excludesfiles | A File name pattern. | No |
| casesensitive | Both the include and exclude patterns are casesensitive. | No |
| followsymlinks | The symbolic links should be followed. | No |
让我们看一个示例，将文件从一个目录复制到另一个目录。
// build.xml
上面的代码会将所有Java文件从dir2复制到dir1。
有时在执行任务后，源文件和输出都不同，因此无法映射。 Apache Ant使用FileMapper映射源文件和创建的目标文件。 org.apache.tools.ant.util.FileNameMapper类和
映射器具有以下属性。
| Attribute | Description | Required |
|---|---|---|
| type | specifies one of the built-in implementations. | No |
| classname | specifies the implementation by class name. | Exactly one of these. |
| classpath | the classpath to use when looking up classname. | No |
| classpathref | Apache Ant? User Manual | No |
| from | the from attribute for the given implementation. | Depends on implementation |
| to | the to attribute for the given implementation. | Depends on implementation |
所有内置的映射器均区分大小写。
FilterSet是一组过滤器，由两个主要操作(任务)复制和移动使用。它使用id和refid属性，id用于定义FilterSet，refid用于引用另一个FilterSet。
也可以将FilterSet嵌套到FilterSet中，以获取所包含过滤器的集合并集。
它具有以下提供的各种属性。
| Attribute | Description | Default | Required |
|---|---|---|---|
| begintoken | It is a string marking the beginning of a token. | @ | No |
| endtoken | It is a string marking the end of a token. | @ | No |
| filtersfile | It specifies a single filtersfile. | None | No |
| recurse | Used for searched more tokens. | true | No |
| onmissingfiltersfile | It Indicates behavior when a nonexistent filtersfile is specified. | fail | No |
在这里，我们将abc.txt文件从构建目录复制到dist目录，但希望将令牌@ DATE @替换为今天的日期。