Session
Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Driver untuk eksekusi Graph
.
Instance Session
merangkum lingkungan tempat Operation
s dalam Graph
dijalankan untuk menghitung Tensors
. Misalnya:
// Let's say graph is an instance of the Graph class
// for the computation y = 3 * x
try (Session s = new Session(graph)) {
try (Tensor x = Tensor.create(2.0f);
Tensor y = s.runner().feed("x", x).fetch("y").run().get(0)) {
System.out.println(y.floatValue()); // Will print 6.0f
}
try (Tensor x = Tensor.create(1.1f);
Tensor y = s.runner().feed("x", x).fetch("y").run().get(0)) {
System.out.println(y.floatValue()); // Will print 3.3f
}
}
PERINGATAN: Session
memiliki sumber daya yang harus dibebaskan secara eksplisit dengan memanggil close()
.
Contoh Sesi aman untuk thread.
Konstruktor Publik
| |
| Sesi ( Grafik g, byte[] konfigurasi) Buat sesi baru dengan Graph terkait dan opsi konfigurasi. |
Metode Publik
ruang kosong | menutup () Lepaskan sumber daya yang terkait dengan Sesi. |
Sesi. Pelari | pelari () Buat Runner untuk menjalankan operasi grafik dan mengevaluasi Tensor. |
Metode Warisan
Dari kelas java.lang.Object boolean | sama dengan (Objek arg0) |
Kelas terakhir<?> | dapatkan Kelas () |
ke dalam | Kode hash () |
kekosongan terakhir | beri tahu () |
kekosongan terakhir | beri tahuSemua () |
Rangkaian | keString () |
kekosongan terakhir | tunggu (arg0 panjang, int arg1) |
kekosongan terakhir | tunggu (argumen panjang0) |
kekosongan terakhir | Tunggu () |
Dari antarmuka java.lang.AutoCloseable kekosongan abstrak | menutup () |
Konstruktor Publik
Sesi Publik ( Grafik g)
Buat sesi baru dengan Graph
terkait.
Sesi publik ( Grafik g, byte[] konfigurasi)
Buat sesi baru dengan Graph
terkait dan opsi konfigurasi.
Parameter
G | Graph Sesi yang dibuat akan beroperasi. |
---|
konfigurasi | Parameter konfigurasi untuk sesi ditentukan sebagai buffer protokol ConfigProto berseri. |
---|
Melempar
Pengecualian Argumen Ilegal | jika konfigurasi tersebut bukan serialisasi buffer protokol ConfigProto yang valid. |
---|
Metode Publik
penutupan kekosongan publik ()
Lepaskan sumber daya yang terkait dengan Sesi.
Blokir hingga tidak ada eksekusi aktif ( panggilan Session.Runner.run()
). Sesi tidak dapat digunakan setelah close return.
Sesi publik. Pelari pelari ()
Buat Runner untuk menjalankan operasi grafik dan mengevaluasi Tensor.
Kecuali dinyatakan lain, konten di halaman ini dilisensikan berdasarkan Lisensi Creative Commons Attribution 4.0, sedangkan contoh kode dilisensikan berdasarkan Lisensi Apache 2.0. Untuk mengetahui informasi selengkapnya, baca Kebijakan Situs Google Developers. Java adalah merek dagang terdaftar dari Oracle dan/atau afiliasinya. Beberapa konten dilisensikan berdasarkan lisensi numpy.
Terakhir diperbarui pada 2025-07-26 UTC.
[null,null,["Terakhir diperbarui pada 2025-07-26 UTC."],[],[],null,["# Session\n\npublic final class **Session** \nDriver for [Graph](/versions/r2.11/api_docs/java/org/tensorflow/Graph) execution.\n\nA `Session` instance encapsulates the environment in which [Operation](/versions/r2.11/api_docs/java/org/tensorflow/Operation)s in a\n[Graph](/versions/r2.11/api_docs/java/org/tensorflow/Graph) are executed to compute [Tensors](/versions/r2.11/api_docs/java/org/tensorflow/Tensor). For example:\n\n // Let's say graph is an instance of the Graph class\n // for the computation y = 3 * x\n\n try (Session s = new Session(graph)) {\n try (Tensor x = Tensor.create(2.0f);\n Tensor y = s.runner().feed(\"x\", x).fetch(\"y\").run().get(0)) {\n System.out.println(y.floatValue()); // Will print 6.0f\n }\n try (Tensor x = Tensor.create(1.1f);\n Tensor y = s.runner().feed(\"x\", x).fetch(\"y\").run().get(0)) {\n System.out.println(y.floatValue()); // Will print 3.3f\n }\n }\n \n**WARNING:** A `Session` owns resources that **must** be explicitly freed by\ninvoking [close()](/versions/r2.11/api_docs/java/org/tensorflow/Session#close()).\n\nInstances of a Session are thread-safe.\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n### Nested Classes\n\n|-------|---|---|-------------------------------------------------------------------------------------------------------------------------------------------------------|\n| class | [Session.Run](/versions/r2.11/api_docs/java/org/tensorflow/Session.Run) || Output tensors and metadata obtained when executing a session. |\n| class | [Session.Runner](/versions/r2.11/api_docs/java/org/tensorflow/Session.Runner) || Run [Operation](/versions/r2.11/api_docs/java/org/tensorflow/Operation)s and evaluate [Tensors](/versions/r2.11/api_docs/java/org/tensorflow/Tensor). |\n\n### Public Constructors\n\n|---|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| | [Session](/versions/r2.11/api_docs/java/org/tensorflow/Session#Session(org.tensorflow.Graph))([Graph](/versions/r2.11/api_docs/java/org/tensorflow/Graph) g) Construct a new session with the associated [Graph](/versions/r2.11/api_docs/java/org/tensorflow/Graph). |\n| | [Session](/versions/r2.11/api_docs/java/org/tensorflow/Session#Session(org.tensorflow.Graph,%20byte[]))([Graph](/versions/r2.11/api_docs/java/org/tensorflow/Graph) g, byte\\[\\] config) Construct a new session with the associated [Graph](/versions/r2.11/api_docs/java/org/tensorflow/Graph) and configuration options. |\n\n### Public Methods\n\n|-------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------|\n| void | [close](/versions/r2.11/api_docs/java/org/tensorflow/Session#close())() Release resources associated with the Session. |\n| [Session.Runner](/versions/r2.11/api_docs/java/org/tensorflow/Session.Runner) | [runner](/versions/r2.11/api_docs/java/org/tensorflow/Session#runner())() Create a Runner to execute graph operations and evaluate Tensors. |\n\n### Inherited Methods\n\nFrom class java.lang.Object \n\n|------------------|---------------------------|\n| boolean | equals(Object arg0) |\n| final Class\\\u003c?\\\u003e | getClass() |\n| int | hashCode() |\n| final void | notify() |\n| final void | notifyAll() |\n| String | toString() |\n| final void | wait(long arg0, int arg1) |\n| final void | wait(long arg0) |\n| final void | wait() |\n\nFrom interface java.lang.AutoCloseable \n\n|---------------|---------|\n| abstract void | close() |\n\nPublic Constructors\n-------------------\n\n#### public\n**Session**\n([Graph](/versions/r2.11/api_docs/java/org/tensorflow/Graph) g)\n\nConstruct a new session with the associated [Graph](/versions/r2.11/api_docs/java/org/tensorflow/Graph). \n\n##### Parameters\n\n| g | |\n|---|---|\n\n#### public\n**Session**\n([Graph](/versions/r2.11/api_docs/java/org/tensorflow/Graph) g, byte\\[\\] config)\n\nConstruct a new session with the associated [Graph](/versions/r2.11/api_docs/java/org/tensorflow/Graph) and configuration options. \n\n##### Parameters\n\n| g | The [Graph](/versions/r2.11/api_docs/java/org/tensorflow/Graph) the created Session will operate on. |\n| config | Configuration parameters for the session specified as a serialized [ConfigProto](https://www.tensorflow.org/code/tensorflow/core/protobuf/config.proto) protocol buffer. |\n|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n\n##### Throws\n\n| IllegalArgumentException | if the config is not a valid serialization of the ConfigProto protocol buffer. |\n|--------------------------|--------------------------------------------------------------------------------|\n\nPublic Methods\n--------------\n\n#### public void\n**close**\n()\n\nRelease resources associated with the Session.\n\nBlocks until there are no active executions ([Session.Runner.run()](/versions/r2.11/api_docs/java/org/tensorflow/Session.Runner#run()) calls). A Session\nis not usable after close returns.\n\n\u003cbr /\u003e\n\n#### public [Session.Runner](/versions/r2.11/api_docs/java/org/tensorflow/Session.Runner)\n**runner**\n()\n\nCreate a Runner to execute graph operations and evaluate Tensors."]]