Groovy HTTPBuilder：从GZIPed Chunked响应中获取实体内容

时间：2012-01-06 16:05:28

标签： groovy gzip chunked-encoding httpbuilder

我需要向Web服务器发送POST请求，并能够读取所述服务器发送的响应。 我尝试使用HTTPBuilder lib和这段代码：

def http = new HTTPBuilder('http://myServer/')
http.setProxy("Proxy_IP", 8080, "http")
postBody = [cmd:'e',format:'sep',c:'a',b:'b',t:'u',r:'r',kl:'lop']

    http.post( body: postBody,
               requestContentType: URLENC ){ resp ->
     HttpEntity he = resp.getEntity()
     println "${resp.getAllHeaders()}"
     println he.getContentType()
     println "${resp.getEntity().getContent()}"
    }

执行此代码时出现异常：

ERROR errors.GrailsExceptionResolver  - EOFException occurred when processing request: [GET] /PROJECT/home/index
Unexpected end of ZLIB input stream. Stacktrace follows:
Message: Unexpected end of ZLIB input stream
    Line | Method
->>  240 | fill      in java.util.zip.InflaterInputStream
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    158 | read      in     ''
|    116 | read . .  in java.util.zip.GZIPInputStream
|    138 | read      in org.apache.http.conn.EofSensorInputStream
|    184 | read . .  in java.io.InputStreamReader
|    140 | read      in java.io.Reader

我打开了电线和接头的调试，这就是我得到的：

2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.wire  - >> "Accept: */*[EOL]"
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.wire  - >> "Content-Length: 160[EOL]"
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.wire  - >> "Content-Type: application/x-www-form-urlencoded[EOL]"
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.wire  - >> "Host: myServer[EOL]"
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.wire  - >> "Proxy-Connection: Keep-Alive[EOL]"
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.wire  - >> "Cookie: ASPSESSIONIDSSTTACTA=NFJKHEDRFGTKCGFEHGFKOANP[EOL]"
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.wire  - >> "Cookie2: $Version=1[EOL]"
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.wire  - >> "Accept-Encoding: gzip,deflate[EOL]"
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.wire  - >> "[EOL]"
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.headers  - >> POST myUrl HTTP/1.1
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.headers  - >> Accept: */*
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.headers  - >> Content-Length: 160
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.headers  - >> Content-Type: application/x-www-form-urlencoded
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.headers  - >> Host: myServer
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.headers  - >> Proxy-Connection: Keep-Alive
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.headers  - >> Cookie: ASPSESSIONIDSSTTACTA=NFJKHEDRFGTKCGFEHGFKOANP
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.headers  - >> Cookie2: $Version=1
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.headers  - >> Accept-Encoding: gzip,deflate
2012-01-06 16:50:12,219 ["http-bio-8080"-exec-2] DEBUG http.wire  - >> "postbody"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "HTTP/1.1 200 OK[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "Date: Fri, 06 Jan 2012 15:50:14 GMT[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "Server: Microsoft-IIS/6.0[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "X-Powered-By: ASP.NET[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "Content-Type: text/html[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "Cache-control: private[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "Via: 1.1 BAYEC-BC-20[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "Transfer-Encoding: chunked[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "Proxy-Connection: Keep-Alive[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "Connection: Keep-Alive[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "Content-Encoding: gzip[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.headers  - << HTTP/1.1 200 OK
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.headers  - << Date: Fri, 06 Jan 2012 15:50:14 GMT
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.headers  - << Server: Microsoft-IIS/6.0
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.headers  - << X-Powered-By: ASP.NET
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.headers  - << Content-Type: text/html
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.headers  - << Cache-control: private
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.headers  - << Via: 1.1 BAYEC-BC-20
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.headers  - << Transfer-Encoding: chunked
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.headers  - << Proxy-Connection: Keep-Alive
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.headers  - << Connection: Keep-Alive
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.headers  - << Content-Encoding: gzip
[Date: Fri, 06 Jan 2012 15:50:14 GMT, Server: Microsoft-IIS/6.0, X-Powered-By: ASP.NET, Content-Type: text/html, Cache-control: private, Via: 1.1 BAYEC-BC-20, Transfer-Encoding: chunked, Proxy-Connection: Keep-Alive, Connection: Keep-Alive, Content-Encoding: gzip]
Content-Type: text/html
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "226[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "[0x1f]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "[0x8e]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "[0x2]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "[0x0]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "[0x0][0x0][0x0][0x0][0x4][0xb]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "[0x9c]S[0xc1][0x8e][0xda]0[0x10]G[0xbd]W[0xda]ps[0xe9][0xa5][0xc1]E[0xd5][0xaa]K[0xeb][0xa4]Zh[0x16]![0x1]BI[0xee][0xc8]$[0x3][0xb1]j[0x92]`O[0x10]|[0xf2][0xee]W[0xd4][0xb1][0x3][0x82][0xec][0xa5][0xad][0x1e4]9[0xf6]x[0xe6]y[0xde][0x9b][0x99][0x87][0xf][0xc84][0x10][0xf6][0xd1][0xf7][0xf9]N[0xf1]2[0x17][0x8fa]H [0x8][0xfb]Z[0x93][0x1c][0xcc]'[0xb9][0xf0][0xfd][0xf0][0xa1][0xf5]"v[0xb5]K[0x1b][0x93][0xce][0xd2]y[0x14][0xc6][\r][\n]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "Y+[0xd8]*80[0xea]l[0xd6][0x85]IQ[0xfe]&[\n]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "d[0xe0]i<K[0xd0][0x5][0x034]z[0xa4]0[0xa23e][0x81]G[0xc7]i[0x9a][0xac][0x9e][0xa7]QB[0xed][0xe5] [0xd3][0xda]#x[0xae]![0xf0][0x10]NH[0xdb][0xb3]y[0x95][0x15][0xb8][0x97][0xe6][0xdf][0xbe]W[0x0][0xcf][0xbb][0xed][0x1e][0x90][0x93][0x2][0xb1][0xf6][0xe1][0xd0][0x88]c[0xe0]M[0xcaa][0x12][0xa1]D?5[0x8][0x1e][0xc9][0xdc][0xa9][0x83]j!~[0x90][0xac][0xe0]J[0x3][0x6]BW[0xfe][0xd3][0xd3][0xe3][0xc8][0x1f]z[0x1d][0x18][\n]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "[0x94][0x10][0xc6]fz[0xaf][0xba][0x91][0xc68][0xd1]P&[0x92][0xf9b][0xbc][0xf][0xcdd][0x1b][0x2][0xa3][0xee][0xd6]1[0xa2]7)l[0xaa][0xfc][0xdc][0x1][0x14]_[0xef][0xa3]?[0xc1][0xe9]53[0xb2]T[0xe5]=[0x18][0x19]~[0xf9]6[0x1a]=2j[0x2][0x1c] [0xcf2][0x8d]Q{S[0xa9][0x1c]T[0xe0][\r]M[0xe6][0x92]k[0x1d]xY[0xd5]Hch[0x94][0xcbd][0xe6]M[0x97](a[0xa8]B[0x86]9[0xc9][0xee][0x9d][0x0][0x5]([0xf0]B[0xa6]QU[0xe5].L[0x5]*`[0xb4];[0x19][0x6]y[0x1b][0xe5]r[0xb5][0x9c5]fF;[[0x85]V[0xc1][0xef][0x94]n[0x10][0xf5]`[0x83][0xc1a][0xd4]Qd[0xa0][0x7][e[0xcb][0x93]L[0xe2][0xd9]*M(o[0xb0][0x82][0x13]d[0xfa] [0x7]\[0xd7]?[0xcb]foj[0x1d]82^[0xb8][0xfc]5#[0x1a][0xb8][0xca][\n]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "Fyx[0xed][0x95][0xeb]#wX/[0xf1]J[0xbf][0xc1]Y[0x99][0xec]dsq[0xe2]xPT[0x17]"f[0xf7][0x1d7]b<7h[0x84]|[0xaf][0xc6]4ZF[0xf1]l[0xf2][0x9f][0xa8][0xb1]i;[0xdb][0x1d]}[0x91]5H[0xc8]L[0xf][0x9][0x8d][0xa2]4[0x9b][0xac][0xca][0xa1][0xed]Fe[0x1a]k[0xab][0xaa]=9[0xae][0xbb][0xe3]NUM[\r][0x8d][0x19][0x1e][0xfd].[0x9]j[0xb]!Z\(;[0x1d][0xba]'o[0x90][0xaf][0xec]>;[0x8f]q[0xec]B[0xc7][0xe9]z61[0x93][0xd3]3[0x8f]&[0xd1]4J[0xa3]y[0xcf][0x9c][0xbc][0xc4][0xeb]h[0x9c9][0x92][0x9e][0xd9][0x80],V[0xf3]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "[0xa4]on[0xbcd][0x17][0xc9][0xaf2]o[0xc1e][0x1b][0xdc][0x16][0xa5][0x3][0xca1]7SB[0xdb]9t[0x489][0xfd][0x1][0x0][0x0][0xff][0xff]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "[\r]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "[\n]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "0[EOL]"
2012-01-06 16:50:15,687 ["http-bio-8080"-exec-2] DEBUG http.wire  - << "[EOL]"

所以我猜问题来自于响应是通过以下方式发送的：

Transfer-Encoding: chunked
Content-Encoding: gzip

还有其他办法吗？ 我做错了吗？ 我尝试谷歌搜索一段时间，并没有找到一个好的领导。 在我看来，HTTPBuilder lib在关闭结束后获取实体内容但是一旦我退出该关闭，我就无法访问实体内容（例外是：无法访问封闭流）

我真的很感激这方面的帮助;）

2 个答案:

答案 0 :(得分：5)

尝试使用HTTPBuilder的setContentEncoding（）方法。

http.contentEncoding = ContentEncoding.Type.GZIP

这应该可以解决你的问题。

答案 1 :(得分：0)

HM。不确定，但是您是否需要发送回复chunked？

AFAIK，chunked意味着服务器以多个方式发送响应。例外似乎是技术堆栈的一部分尝试在您收回所有部分之前解压缩内容。

因此，一种解决方法可能是发送响应而不是chunked

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