java - 找不到符号 HttpClient

Question

这些事情对我来说从来没有多大意义。我正在尝试使用此类:

http://www.devdaily.com/java/jwarehouse/commons-httpclient-2.0.1/src/java/org/apache/commons/httpclient/ChunkedInputStream.java.shtml

每次编译都会出现一堆错误，例如:

> /ChunkedInputStream.java:85: cannot find symbol
> symbol  : class HttpMethod
> location: class .ChunkedInputStream
>     private HttpMethod method;
>             ^
> /ChunkedInputStream.java:96: cannot find symbol
> symbol  : class HttpMethod
> location: class .ChunkedInputStream
>         final InputStream in, final HttpMethod method) throws IOException {
>                                     ^
> /ChunkedInputStream.java:283: cannot find symbol
> symbol  : variable HttpConstants
> location: class .ChunkedInputStream
>         String dataString = HttpConstants.getString(baos.toByteArray());
>                             ^
> /ChunkedInputStream.java:303: cannot find symbol
> symbol  : class Header
> location: class .ChunkedInputStream
>         Header[] footers = HttpParser.parseHeaders(in);
>         ^
> /ChunkedInputStream.java:303: cannot find symbol
> symbol  : variable HttpParser
> location: class .ChunkedInputStream
>         Header[] footers = HttpParser.parseHeaders(in);

我不应该访问这些对象，因为它是包 org.apache.commons.httpclient 的一部分； ？我还将 apache http 客户端 jar 添加到我的应用程序中。给了什么？

Answer 1

您需要确保导入位于程序的顶部。项目中只有 jar 是不够的，除非这些类不在同一个包中，否则您需要显式导入这些类到您的程序中。