我试图从我的 android 应用程序中删除存储在 tomcat 的 webapps 目录中的图像。当我尝试下面的代码时，它给了我 403 状态代码。我在网上查了一下，发现如果请求合法但操作被禁止，它会给出该代码。谁能告诉我哪里出错了。我的代码是:
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("DELETE");
int responseCode = connection.getResponseCode();
当我尝试使用 HttpClient 时，它给了我同样的错误 - HTTP/1.1 403 Forbidden
HttpClient httpClient = new DefaultHttpClient();
try {
httpClient.getParams().setParameter(
"http.socket.timeout", new Integer(90000));
HttpDelete delete = new HttpDelete(new URI(
"http://192.168.2.1:9090/LocationUpdaterServlet/images/"
+ userid));
Toast.makeText(Image.this, "Removing your picture", 5000).show();
HttpResponse response = httpClient.execute(delete);
if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
System.out.println(response.getStatusLine());
} else {
// Here every thing is fine.
}
HttpEntity resEntity = response.getEntity();
if (resEntity == null)
System.out
.println("---------Error No Response !!!-----");
}catch (Exception ex) {
System.out.println("---------Error----"+ ex.getMessage());
ex.printStackTrace();
} finally {
httpClient.getConnectionManager().shutdown();
}
最佳答案
在 web.xml 中，启用其他 http 方法:
<servlet>
<servlet-name>default</servlet-name>
<servlet-class>org.apache.catalina.servlets.DefaultServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>listings</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>readonly</param-name>
<param-value>false</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
参数debug和listings是tomcat默认加载的，而默认的readonly为true，表示只有GET和POST可用.
其他可用的参数是:
debug Debugging detail level for messages logged
by this servlet. [0]
fileEncoding Encoding to be used to read static resources
[platform default]
input Input buffer size (in bytes) when reading
resources to be served. [2048]
listings Should directory listings be produced if there
is no welcome file in this directory? [false]
WARNING: Listings for directories with many
entries can be slow and may consume
significant proportions of server resources.
output Output buffer size (in bytes) when writing
resources to be served. [2048]
readonly Is this context "read only", so HTTP
commands like PUT and DELETE are
rejected? [true]
readmeFile File to display together with the directory
contents. [null]
sendfileSize If the connector used supports sendfile, this
represents the minimal file size in KB for
which sendfile will be used. Use a negative
value to always disable sendfile. [48]
useAcceptRanges Should the Accept-Ranges header be included
in responses where appropriate? [true]
关于android - http删除tomcat 403错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/10308436/