我编写了一个REST WCF RIA Silverlight 4.0兼容服务，可以从javascript+jQuery.1.4.2.js+JSON2.js（当然还有.NET 4.0应用程序）成功访问该服务
基本上，我在Android活动中所做的是：
HttpPost request = new HttpPost(SERVICE_URI + "/SubmitChanges");
request.setHeader("Accept", "application/json; charset=utf-8");
request.setHeader("Content-type", "application/json; charset=utf-8");
// Build JSON string
JSONStringer myTable = new JSONStringer()
.object()
.key("changeSet")
.array()
.object()
.key("Id").value(0)
.key("Entity")
.object()
.key("__type").value("MyTable:#MyServiceApp.Web")
.key("ID").value(21)
.endObject()
.key("Operation").value(4)
.endObject()
.endArray()
.endObject();
Log.d("WebInvoke", "MyTable : " + myTable.toString());
StringEntity entity = new StringEntity(myTable.toString());
// entity.setContentType("application/json; charset=utf-8");
// entity.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,"application/json; charset=utf-8"));
request.setEntity(entity);
Log.d("WebInvoke", "Entity : " + entity.toString());
// Send request to WCF service
DefaultHttpClient httpClient = new DefaultHttpClient();
httpClient.getCredentialsProvider().setCredentials(new AuthScope(null,-1), new UsernamePasswordCredentials("myuser","mypassword"));
// HttpClientParams myParam = (HttpClientParams) httpClient.getParams();
// Log.d("WebInvoke", "Entity : " + myParam.toString());
HttpResponse response = httpClient.execute(request);
When turned to Android app, I noted that I cannot do PUT s operations (GETs worked OK). They returned error 400 - Bad request As it worked OK on js, I used fiddler2 to see what s happend. When I setup the emulator to work throught fiddler proxy, suddenly, the request has turned OK. Then I tryed again without proxy, and it returned to error 400. I tryed also uploading the apk to my Galaxy S and connecting through web. Again, GETs works, but PUTs don t...
有什么想法吗？
奥斯卡，萨鲁多斯。
更新
这是上一次在没有代理的情况下执行请求
request HttpPost (id=830085521536)
aborted false
abortLock ReentrantLock (id=830085616656)
connRequest null
entity StringEntity (id=830085531688)
headergroup HeaderGroup (id=830085644864)
params null
releaseTrigger null
uri URI (id=830085878840)
httpClient DefaultHttpClient (id=830085612544)
connManager null
cookieStore BasicCookieStore (id=830085604904)
credsProvider BasicCredentialsProvider (id=830085612624)
defaultParams null
httpProcessor null
keepAliveStrategy null
log Jdk14Logger (id=830085596488)
proxyAuthHandler null
redirectHandler null
requestExec null
retryHandler null
reuseStrategy null
routePlanner null
supportedAuthSchemes null
supportedCookieSpecs null
targetAuthHandler null
userTokenHandler null
这是在没有代理的情况下执行请求的后续操作
request HttpPost (id=830085521536)
aborted false
abortLock ReentrantLock (id=830085616656)
connRequest null
entity StringEntity (id=830085531688)
headergroup HeaderGroup (id=830085644864)
params BasicHttpParams (id=830085486480)
releaseTrigger SingleClientConnManager$ConnAdapter (id=830085855888)
uri URI (id=830085878840)
httpClient DefaultHttpClient (id=830085612544)
connManager SingleClientConnManager (id=830085927648)
cookieStore BasicCookieStore (id=830085604904)
credsProvider BasicCredentialsProvider (id=830085612624)
defaultParams BasicHttpParams (id=830085575968)
httpProcessor BasicHttpProcessor (id=830085617496)
keepAliveStrategy DefaultConnectionKeepAliveStrategy (id=830085544576)
log Jdk14Logger (id=830085596488)
proxyAuthHandler DefaultProxyAuthenticationHandler (id=830085951384)
redirectHandler DefaultRedirectHandler (id=830085524448)
requestExec HttpRequestExecutor (id=830085525992)
retryHandler DefaultHttpRequestRetryHandler (id=830085583064)
reuseStrategy DefaultConnectionReuseStrategy (id=830085882544)
routePlanner DefaultHttpRoutePlanner (id=830085880096)
supportedAuthSchemes AuthSchemeRegistry (id=830085650400)
supportedCookieSpecs CookieSpecRegistry (id=830085516320)
targetAuthHandler DefaultTargetAuthenticationHandler (id=830085583264)
userTokenHandler DefaultUserTokenHandler (id=830085486432)
response BasicHttpResponse (id=830085980112)
entity BasicManagedEntity (id=830085983552)
headergroup HeaderGroup (id=830085625184)
locale Locale (id=830085944016)
params ClientParamsStack (id=830085486448)
reasonCatalog EnglishReasonPhraseCatalog (id=830004383520)
statusline BasicStatusLine (id=830085625160)
这是使用代理执行请求的前一步
request HttpPost (id=830085966120)
aborted false
abortLock ReentrantLock (id=830085966520)
connRequest null
entity StringEntity (id=830085971592)
headergroup HeaderGroup (id=830085966392)
params null
releaseTrigger null
uri URI (id=830085966568)
httpClient DefaultHttpClient (id=830085973896)
connManager null
cookieStore BasicCookieStore (id=830085974504)
credsProvider BasicCredentialsProvider (id=830085974144)
defaultParams null
httpProcessor null
keepAliveStrategy null
log Jdk14Logger (id=830085974120)
proxyAuthHandler null
redirectHandler null
requestExec null
retryHandler null
reuseStrategy null
routePlanner null
supportedAuthSchemes null
supportedCookieSpecs null
targetAuthHandler null
userTokenHandler null
这是在使用代理执行请求之后
request HttpPost (id=830085966120)
aborted false
abortLock ReentrantLock (id=830085966520)
connRequest null
entity StringEntity (id=830085971592)
headergroup HeaderGroup (id=830085966392)
params BasicHttpParams (id=830085980824)
releaseTrigger SingleClientConnManager$ConnAdapter (id=830085981992)
uri URI (id=830085966568)
httpClient DefaultHttpClient (id=830085973896)
connManager SingleClientConnManager (id=830085978144)
cookieStore BasicCookieStore (id=830085974504)
credsProvider BasicCredentialsProvider (id=830085974144)
defaultParams BasicHttpParams (id=830085977232)
httpProcessor BasicHttpProcessor (id=830085978848)
keepAliveStrategy DefaultConnectionKeepAliveStrategy (id=830085978816)
log Jdk14Logger (id=830085974120)
proxyAuthHandler DefaultProxyAuthenticationHandler (id=830085980560)
redirectHandler DefaultRedirectHandler (id=830085980152)
requestExec HttpRequestExecutor (id=830085976912)
retryHandler DefaultHttpRequestRetryHandler (id=830085980128)
reuseStrategy DefaultConnectionReuseStrategy (id=830085978800)
routePlanner DefaultHttpRoutePlanner (id=830085978832)
supportedAuthSchemes AuthSchemeRegistry (id=830085975792)
supportedCookieSpecs CookieSpecRegistry (id=830085976320)
targetAuthHandler DefaultTargetAuthenticationHandler (id=830085980344)
userTokenHandler DefaultUserTokenHandler (id=830085980776)
response BasicHttpResponse (id=830085927240)
entity BasicManagedEntity (id=830085863688)
headergroup HeaderGroup (id=830085944256)
locale Locale (id=830085944272)
params ClientParamsStack (id=830085980792)
reasonCatalog EnglishReasonPhraseCatalog (id=830004383520)
statusline BasicStatusLine (id=830085927216)