curl -XPOST -H "Content-Type:application/json" -d '{"id": "978-7-111-55842", "name": "golang.txt", "authors":["tom"], "press":"nanjing published"}' localhost:8080/book
curl -XPOST -H "Content-Type:application/json" localhost:8080/book/978-7-111-55842
curl -XGET -H "Content-Type:application/json" localhost:8080/book/978-7-111-55842
curl -XGET -H "Content-Type:application/json" localhost:8080/book
curl -XDELETE -H "Content-Type:application/json" localhost:8080/book/978-7-111-55842