我只是想在此处关注有关依赖注入的球衣文档：https ://jersey.java.net/documentation/latest/ioc.html#d0e15100
如果我尝试在参数上使用@Inject，我只会得到 grizzly 的请求失败页面。
有人可以告诉我我做错了什么吗？
主.java
public class Main extends ResourceConfig {
// Base URI the Grizzly HTTP server will listen on
public static final String BASE_URI = "http://0.0.0.0";
public static URI getBaseURI(String hostname, int port) {
return UriBuilder.fromUri("http://0.0.0.0/").port(port).build();
}
public Main() {
super();
String port = System.getenv("PORT");
if(port == null) {
port = "8080";
}
URI uri = getBaseURI(System.getenv("HOSTNAME"), Integer.parseInt(port));
final HttpServer server = startServer(uri);
System.out.println(String.format("Jersey app started with WADL available at "
+ "%sapplication.wadl\nHit enter to stop it...", BASE_URI));
register(new AbstractBinder() {
@Override
protected void configure() {
bindFactory(DaoFactory.class).to(TodoDao.class);
}
});
try {
while(true) {
System.in.read();
}
} catch (Exception e) {
}
}
/**
* Starts Grizzly HTTP server exposing JAX-RS resources defined in this application.
* @return Grizzly HTTP server.
*/
public static HttpServer startServer(URI uri) {
final ResourceConfig rc = new ResourceConfig().packages("com.example");
return GrizzlyHttpServerFactory.createHttpServer(uri, rc);
}
/**
* Main method.
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
Main m = new Main();
}
}
TodoResource.java
@Path( "todos" )
public class TodoResource {
@Inject Dao<String> dao;
@GET
@Produces(MediaType.TEXT_PLAIN)
public String getIt() {
if(dao == null) {
return "dao is null";
}
StringBuilder builder = new StringBuilder();
for(int i = 0; i < dao.getAll().size(); i++) {
builder.append(dao.getAll().get(i));
}
return builder.toString();
}
}
道工厂.java
public class DaoFactory implements Factory<Dao>{
private final Dao dao;
@Inject
public DaoFactory(Dao dao) {
this.dao = dao;
}
@Override
public Dao provide() {
return dao;
}
@Override
public void dispose(Dao d) {
}
}