eclipse中的SaxParseException:XML文档结构必须在同一个实体内开始和结束

Question

我正在使用JAVA的last.fm API,可以在这里找到.

我有一个巨大的数据集,我只使用该文件与用户的艺术家历史和播放.我用Java编写了一个代码,它提取这些艺术家的名字,并根据Artist.getSimilar()方法返回相似的艺术家.

我跑了一次但不是所有的艺术家.我终止了一半的调试.但是,下次,我的结果将从缓存中返回,并且不再将请求发送到Web服务器.问题是,这次我得到的结果只有我终止结果的艺术家.我尝试使用另一种方法artists=Artist.getTopAlbums(),我在中途终止,下次遇到同样的问题.我得到的错误是:

[Fatal Error] :513:9: <strong>XML document structures must start and end within the same entity.</strong>
Exception in thread "main" de.umass.lastfm.CallException: org.xml.sax.SAXParseException; lineNumber: 513; columnNumber: 9; XML document structures must start and end within the same entity.
Caused by: org.xml.sax.SAXParseException; lineNumber: 513; columnNumber: 9; XML document structures must start and end within the same entity.
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:251)
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:300)

还有一堆其他例外,这些不是重要的部分.

我尝试重新安装eclipse,在-clean模式下启动eclipse 并清理工作区.没有任何效果.我也创建了一个新的工作区,但缓存不断回来.我正在使用Eclipse 3.8.也许在eclipse中清除缓存的有效方法会有所帮助吗？我该怎么做 似乎没什么用.(此外,没有选项可以像在许多文章中所建议的那样在Window> Preferences中手动清理缓存).

或者我还需要做其他事情吗？任何帮助深表感谢.提前致谢.

我的java代码(工作正常,没有错误):

//in main
BufferedReader inp = new BufferedReader (new InputStreamReader(System.in));
String sinput=inp.readLine();
System.out.println(sinput+"\t \t \t"+getSimilarartists(sinput));


//to fetch similar artists
public static StringBuilder getSimilarartists(String artist){
String key = "af2bfbcb4dd49870fdb8e92f128f4ff7";
StringBuilder sb = new StringBuilder();
String art=(Artist.getSimilar(artist, key)).toString();
int i=0;
while(i<art.length()-5){
    if((art.substring(i, (i+4))).equalsIgnoreCase("name")){
        i=i+6;

        while(art.charAt(i)!='\''){
            sb.append(art.charAt(i));
            i++;
        }

        break;
    }
    i++;
}
return sb;
}  

输出(只是最后几行):

hans zimmer;     I recommend=Hans Zimmer & James Newton Howard<br>
nelly furtado;   I recommend=Jennifer Lopez<br>
madonna;     I recommend=Kylie Minogue<br>
blink-182;   I recommend=Box Car Racer<br>
dave gahan;  I recommend=Depeche Mode<br>
kelly clarkson;  I recommend=Carrie Underwood<br>
lucie silvas;    I recommend=Delta Goodrem<br>
natalie imbruglia;   I recommend=Melanie C<br>
michelle branch;     I recommend=The Wreckers<br>
delta goodrem;   I recommend=Ricki-Lee<br>
new order;   I recommend=Electronic<br>
seal;    I recommend=Simply Red<br>
atomic kitten;   I recommend=Liberty X 

 *** (this is where I had terminated my previous run) ***

[Fatal Error] :513:9: XML document structures must start and end within the same entity.<br>
Exception in thread "main" de.umass.lastfm.CallException: org.xml.sax.SAXParseException; lineNumber: 513; columnNumber: 9; XML document structures must start and end within the same entity.
    at de.umass.lastfm.Caller.call(Caller.java:268)<br>
    at de.umass.lastfm.Caller.call(Caller.java:189)<br>
    at de.umass.lastfm.Caller.call(Caller.java:185)<br>
    at de.umass.lastfm.Artist.getSimilar(Artist.java:144)<br>
    at de.umass.lastfm.Artist.getSimilar(Artist.java:132)<br>
    at Recommender.getSimilarartists(Recommender.java:89)<br>
    at Recommender.main(Recommender.java:58)<br>
Caused by: org.xml.sax.SAXParseException; lineNumber: 513; columnNumber: 9; XML document structures must start and end within the same entity.<br>
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:251)
    at     <br>
com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:300)<br>
    at de.umass.lastfm.Caller.createResultFromInputStream(Caller.java:324)<br>
    at de.umass.lastfm.Caller.call(Caller.java:256)<br>
    ... 6 more

Answer 1

类似这样的错误通常表明文档格式错误：

引起的：org.xml.sax.SAXParseException；行号：513；列数：9；XML 文档结构必须在同一实体内开始和结束。在

您可以采取一些措施来调试此问题：

1. 将 XML 文档打印到日志中并通过某种 XML 验证器运行它。
2. 检查以确保不存在无效字符（例如 UTF-8 文档中的 UTF-16 字符）