java - 使用 Guice servlet 配置时如何在 Jersey WS 调用中打开跟踪

Question

我正在尝试打开跟踪以调试 Jersey WS 调用。我尝试添加描述的 init-param here ，在我的 Guice servlet 配置和 web.xml 中，但似乎无法让它工作。

这是 Guice servlet 配置的样子:

public class GuiceServletConfig extends GuiceServletContextListener
{
private static final Logger log = LoggerFactory.getLogger(GuiceServletConfig.class);

public GuiceServletConfig()
{
    super();
    log.debug("creating GuiceServletConfig");
}



private static class ServletModule extends JerseyServletModule {
    private InputStream getInputStream() throws FileNotFoundException {
        File file = new File("tmp");
        String pathToTempFile = file.getAbsolutePath();
        log.debug("path to config: {}", pathToTempFile);
        String pathWithoutTmp = pathToTempFile.substring(0,
            pathToTempFile.indexOf(File.separator + "tmp"));
        StringBuilder stringBldr = new StringBuilder(pathWithoutTmp)
            .append(File.separator).append("extensions")
            .append(File.separator).append("__lib__")
            .append(File.separator).append("gelato.config.properties");
        log.debug("loading guice properties from: {}",  stringBldr.toString());
        return new FileInputStream(new File(stringBldr.toString()));
    }

    @Override
    protected void configureServlets() {
        Properties properties = new Properties();
        try {
            InputStream is = getInputStream();
            properties.load(is);
            Names.bindProperties(binder(), properties);
        } catch (Exception ex) {
            log.error("Error binding properties: {}", ex.toString());
        }
        // Must configure at least one JAX-RS resource or the
        // server will fail to start.
        // Must configure at least one JAX-RS resource or the
        // server will fail to start.
        bind(UserResource.class);
        bind(PlayersManager.class).to(GelatoPlayersManager.class);
        bind(MessageHandler.class).to(SFSMessageHandler.class);
        Map<String, String> params = new HashMap<String, String>();
        params.put(PackagesResourceConfig.PROPERTY_PACKAGES, "org.buffalo.gelato.resources");
        // Route all requests through GuiceContainer
        params.put("com.sun.jersey.config.feature.Trace", "true");
        serve("/rest/*").with(GuiceContainer.class, params);
    }
}

我也试过将它放在 web.xml 中，但我想这会被忽略，因为我是通过 Guice 配置 Jersey。

<servlet>
    <servlet-name>Jersey REST Service for value codes</servlet-name>
    <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
    <init-param>
        <param-name>com.sun.jersey.config.feature.Trace</param-name>
        <param-value>true</param-value>
    </init-param>
</servlet>

Answer 1

如果你想在你的服务器日志中看到日志消息(你的第一个跟踪配置是正确的)，你需要添加 ResourceConfig.PROPERTY_CONTAINER_REQUEST_FILTERS和/或 ResourceConfig.PROPERTY_CONTAINER_RESPONSE_FILTERS配置的属性，例如:

params.put(ResourceConfig.PROPERTY_CONTAINER_REQUEST_FILTERS, com.sun.jersey.api.container.filter.LoggingFilter.class);
params.put(ResourceConfig.PROPERTY_CONTAINER_RESPONSE_FILTERS, com.sun.jersey.api.container.filter.LoggingFilter.class);

参见容器的 JavaDoc LoggingFilter .