java - RestAssured.get(url).statusCode 导致 java.lang.OutOfMemoryError : Java heap space

Question

我正在使用 RestAssured.get(url).statusCode() 来查看 URL 是否正常工作并成功响应(代码 200)。对于某些 url(如 url1)，它可以正常工作，但对于某些 url(如 url2)，它将导致以下错误:

String url1="http://www.bbsys.com/playersdemo.exe"
String url2="http://www.ezhomeinspectionsoftware.com/filestorage/EZ-Setup.exe"

这两个 url 都会导致下载文件。但第二个下载了更大的文件。所以，可能这就是它导致内存不足异常的原因。我需要知道如何处理这样的情况。我需要从大量不同的网址获得响应。您建议使用其他库还是我以错误的方式使用该库？

 java.lang.OutOfMemoryError: Java heap space 
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
    at java.util.Arrays.copyOf(Arrays.java:3236)
    at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:118)
    at java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:93)
    at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:153)
    at io.restassured.internal.util.IOUtils.toByteArray(IOUtils.java:31)
    at io.restassured.internal.http.GZIPEncoding$GZIPDecompressingEntity.getContent(GZIPEncoding.java:69)
    at org.apache.http.conn.BasicManagedEntity.getContent(BasicManagedEntity.java:85)
    at io.restassured.internal.http.HTTPBuilder.parseResponse(HTTPBuilder.java:545)
    at io.restassured.internal.RequestSpecificationImpl$RestAssuredHttpBuilder.super$2$parseResponse(RequestSpecificationImpl.groovy)
    at sun.reflect.GeneratedMethodAccessor108.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
    at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1215)
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:132)
    at io.restassured.internal.RequestSpecificationImpl$RestAssuredHttpBuilder.parseResponse(RequestSpecificationImpl.groovy:2137)
    at sun.reflect.GeneratedMethodAccessor107.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:210)
    at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:59)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:174)
    at io.restassured.internal.RequestSpecificationImpl$RestAssuredHttpBuilder.doRequest(RequestSpecificationImpl.groovy:2073)
    at io.restassured.internal.http.HTTPBuilder.doRequest(HTTPBuilder.java:494)
    at io.restassured.internal.http.HTTPBuilder.request(HTTPBuilder.java:451)
    at io.restassured.internal.http.HTTPBuilder$request$2.call(Unknown Source)
    at io.restassured.internal.RequestSpecificationImpl.sendHttpRequest(RequestSpecificationImpl.groovy:1450)
    at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)

Answer 1

您真的想下载文件还是只想检查网址是否有效？

如果没有，请查看 head 方法 ( https://static.javadoc.io/io.rest-assured/rest-assured/3.0.7/io/restassured/RestAssured.html#head-java.lang.String-java.util.Map- )，以发送 head 请求而不触发下载。

否则，您唯一的选择就是提供足够的内存，正如 @Roberto 建议的那样。