Java mail sending program (can be sent to multiple addresses at the same time, can carry attachments), java mailMain Program for sending emailsImport java. util. Properties;Import common. util. Email_Autherticatorbean;Import javax. mail. Authenticator;Import javax. mail. internet. InternetAddress;Import org. apache. commons. lang. StringUtils;Import javax. mail. internet. MimeBodyPart;Import javax. mail. Multipart;Import javax. activation. FileDataSou
Java sample codes that access outer internet through proxy which require username and passwordUse inner instead of extends is the most differentThere are also some articles on the Internet, but most of the proxies that involve authorization verification have problems,The main problem is the use of Authenticator. setDefault and base64 encoding.Code is a document with no ambiguity. The implementation principle is not explained anymore. See the code to u
of user password checkWay One:Officer information is written to the HTTP header, and the user name password is Base64 encoded after the Proxy-authorization header is set:String Headerkey = "Proxy-authorization"; String encoded = new String (Base64.encodebase64 ((new string (Proxyuser + ":" + Proxypass). GetBytes ())); String headervalue = "Basic" + encoded;conn.setrequestproperty (Headerkey, Headervalue);A lot of information will be recommended in this way, but after testing,This mode does not
The verification framework for strutsFirst, Field validator1. Simple user input verification, under the action of receiving data under the same package, create a ***-validation.xmlfile, and then configure the validation rule as an example:DOCTYPE validators Public "-//apache struts//xwork Validator 1.0.2//en" "http://struts.apache.org/dtds/x Work-validator-1.0.2.dtd ">validators> Fieldname= "User.account"> Field-validatortype= "Requiredstring"> message>Please enter your account numb
requires a java. util. properties object to obtain information such as the email server, user name, and password.The session constructor is private. You can use the getdefainstance instance () method to obtain a single default session that can be shared, for example:
Properties props = new properties ();// Enter some informationSession session = session. getdefaultinstance (props, null );
Alternatively, you can use the getinstance () method to create a unique session, for example:
Properties pr
The effect is the same as that of the SMTP protocol in the previous two days. However, it is much more convenient and easier to use javamail.
To run this program, two Java packages are required: mail. jar and activation. Jar. These two packages are easy to run, so I will not talk about them here.
The core classes of javamail APIs used in this program include Session, message, address, verification program, and transmission.
The functions are as follows:
SessionThe session class defines a basic m
JavaBeans activation framework, because this framework is the javamail APIYes. If we use J2EE, we do not need to download javamail separately because it exists in J2EE. jar, and we only need to add J2EE. jarClasspath.
2. Install JavaBeans activation frameworkFrom http://java.sun.com/products/javans/glasgow/jaf.htmlLoad JavaBeans activation framework and add it to classpath. This framework adds the classification of any data blocks andFeatures. These features are required by the javamail API. Al
", "Chri"); user2.addRole("programmer"); users.add(user1); users.add(user2); } class User { public User(String username, String password) { this.username = username; this.password = password; } public String username; public ArrayList roles = new ArrayList(); public String password; public void addRole(String role) { roles.add(role); } public ArrayList getRoles() { return roles; } }
We will find that after createUserDatabase () is called
, and Authenticator to apply for a Ticket to access the Server. KDC uses its Master Key to decrypt the Client's TGT to obtain the SKDC-Client, and uses the SKDC-Client to decrypt the Authenticator to verify whether the sender is the real owner of The TGT, verify that the KDC and Server Session Key (SKDC-Server) are obtained by decrypting the Server TGT with the Master Key, and the Session Key is used to enc
Next, I will analyze it in the previous article. If the option command is complete
unsigned RTSPClient::sendDescribeCommand(responseHandler* responseHandler, Authenticator* authenticator) { if (authenticator != NULL) fCurrentAuthenticator = *authenticator; return sendRequest(new RequestRecord(++fCSeq, "DESCRIBE", re
In the SDK provided by Android, there is an example called Samplesyncadapter in the Samples directory, which is an instance of the account and synchronization, such as Google's original Android phone can use Google account to synchronize data. For example, if you want to sync your contacts to the server in real time, you can use this example to learn about the synchronization mechanism provided by Android to achieve your own synchronization capabilities. Let's introduce the management section of
) { = request.newbuilder (). CacheControl (Cachecontrol.force_cache). build (); }OKHTITP Knowledge Extension:1.) Interceptor Interceptor, known as the interception operation, is used to intercept the request to do some special processing, for example: above we use the CacheControl, How do we intercept a request to use Cachecontrol.force_cache when the network is unavailable;Okhttpclient.builder Newbuilder =Mokhttpclient.newbuilder (); Newbuilder.addinterceptor (NewIntercepto
: Officer information written to the HTTP header, the Usernamepassword base64 encoding after the set Proxy-authorization header:String Headerkey = "Proxy-authorization"; String encoded = new String (Base64.encodebase64 ((new string (Proxyuser + ":" + Proxypass). GetBytes ())); String headervalue = "Basic" + encoded;conn.setrequestproperty (Headerkey, Headervalue);A lot of information will recommend this way. But after testing,This mode does not work correctly in the HTTPS demand scenario!mode tw
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