我当时的情况也一样。这是我的解决方案。

服务器-Spring Security配置

<sec:http>
    <sec:intercept-url pattern="/**" access="ROLE_USER" method="POST"/>
    <sec:intercept-url pattern="/**" filters="none" method="GET"/>
    <sec:http-basic />
</sec:http>

<sec:authentication-manager alias="authenticationManager">
    <sec:authentication-provider>
        <sec:user-service>
            <sec:user name="${rest.username}" password="${rest.password}" authorities="ROLE_USER"/>
        </sec:user-service>
    </sec:authentication-provider>
</sec:authentication-manager>

客户端RestTemplate配置

<bean id="httpClient" class="org.apache.commons.httpclient.HttpClient">
    <constructor-arg ref="httpClientParams"/>
    <property name="state" ref="httpState"/>
</bean>

<bean id="httpState" class="CustomHttpState">
    <property name="credentials" ref="credentials"/>
</bean>

<bean id="credentials" class="org.apache.commons.httpclient.UsernamePasswordCredentials">
    <constructor-arg value="${rest.username}"/>
    <constructor-arg value="${rest.password}"/>
</bean>

<bean id="httpClientFactory" class="org.springframework.http.client.CommonsClientHttpRequestFactory">
    <constructor-arg ref="httpClient"/>
</bean>


<bean class="org.springframework.web.client.RestTemplate">
    <constructor-arg ref="httpClientFactory"/>                
</bean>

自定义HttpState实现

/**
 * Custom implementation of {@link HttpState} with credentials property.
 *
 * @author banterCZ
 */
public class CustomHttpState extends HttpState {

    /**
     * Set credentials property.
     *
     * @param credentials
     * @see #setCredentials(org.apache.commons.httpclient.auth.AuthScope, org.apache.commons.httpclient.Credentials)
     */
    public void setCredentials(final Credentials credentials) {
        super.setCredentials(AuthScope.ANY, credentials);
    }

}

Maven依赖

<dependency>
   <groupId>commons-httpclient</groupId>
   <artifactId>commons-httpclient</artifactId>
   <version>3.1</version>
</dependency>

这是一个与Spring 3.1和Apache HttpComponents 4.1配合使用的很好的解决方案，我是根据该站点上的各种答案创建的，并阅读了Spring RestTempalte源代码。我希望能够节省其他人的时间，我认为spring应该只内置一些像这样的代码，但事实并非如此。

RestClient client = new RestClient();
client.setApplicationPath("someApp");
String url = client.login("theuser", "123456");
UserPortfolio portfolio = client.template().getForObject(client.apiUrl("portfolio"), 
                         UserPortfolio.class);

下面是Factory类，该类将HttpComponents上下文设置为与使用RestTemplate的每个请求相同。

public class StatefullHttpComponentsClientHttpRequestFactory extends 
                   HttpComponentsClientHttpRequestFactory
{
    private final HttpContext httpContext;

    public StatefullHttpComponentsClientHttpRequestFactory(HttpClient httpClient, HttpContext httpContext)
    {
        super(httpClient);
        this.httpContext = httpContext;
    }

    @Override
    protected HttpContext createHttpContext(HttpMethod httpMethod, URI uri)
    {
        return this.httpContext;
    }
}

以下是Statefull Rest模板，你可以使用它来记住cookie，一旦登录，它就会记住JSESSIONID并在后续请求中发送。

public class StatefullRestTemplate extends RestTemplate
{
    private final HttpClient httpClient;
    private final CookieStore cookieStore;
    private final HttpContext httpContext;
    private final StatefullHttpComponentsClientHttpRequestFactory statefullHttpComponentsClientHttpRequestFactory;

    public StatefullRestTemplate()
    {
        super();
        httpClient = new DefaultHttpClient();
        cookieStore = new BasicCookieStore();
        httpContext = new BasicHttpContext();
        httpContext.setAttribute(ClientContext.COOKIE_STORE, getCookieStore());
        statefullHttpComponentsClientHttpRequestFactory = new StatefullHttpComponentsClientHttpRequestFactory(httpClient, httpContext);
        super.setRequestFactory(statefullHttpComponentsClientHttpRequestFactory);
    }

    public HttpClient getHttpClient()
    {
        return httpClient;
    }

    public CookieStore getCookieStore()
    {
        return cookieStore;
    }

    public HttpContext getHttpContext()
    {
        return httpContext;
    }

    public StatefullHttpComponentsClientHttpRequestFactory getStatefulHttpClientRequestFactory()
    {
        return statefullHttpComponentsClientHttpRequestFactory;
    }
}

这是一个代表其他客户端的类，因此你可以调用受spring安全保护的应用程序。

public class RestClient
{
    private String host = "localhost";
    private String port = "8080";
    private String applicationPath;
    private String apiPath = "api";
    private String loginPath = "j_spring_security_check";
    private String logoutPath = "logout";
    private final String usernameInputFieldName = "j_username";
    private final String passwordInputFieldName = "j_password";
    private final StatefullRestTemplate template = new StatefullRestTemplate();

    /**
     * This method logs into a service by doing an standard http using the configuration in this class.
     * 
     * @param username
     *            the username to log into the application with
     * @param password
     *            the password to log into the application with
     * 
     * @return the url that the login redirects to
     */
    public String login(String username, String password)
    {
        MultiValueMap<String, String> form = new LinkedMultiValueMap<>();
        form.add(usernameInputFieldName, username);
        form.add(passwordInputFieldName, password);
        URI location = this.template.postForLocation(loginUrl(), form);
        return location.toString();
    }

    /**
     * Logout by doing an http get on the logout url
     * 
     * @return result of the get as ResponseEntity
     */
    public ResponseEntity<String> logout()
    {
        return this.template.getForEntity(logoutUrl(), String.class);
    }

    public String applicationUrl(String relativePath)
    {
        return applicationUrl() + "/" + checkNotNull(relativePath);
    }

    public String apiUrl(String relativePath)
    {
        return applicationUrl(apiPath + "/" + checkNotNull(relativePath));
    }

    public StatefullRestTemplate template()
    {
        return template;
    }

    public String serverUrl()
    {
        return "http://" + host + ":" + port;
    }

    public String applicationUrl()
    {
        return serverUrl() + "/" + nullToEmpty(applicationPath);
    }

    public String loginUrl()
    {
        return applicationUrl(loginPath);
    }

    public String logoutUrl()
    {
        return applicationUrl(logoutPath);
    }

    public String apiUrl()
    {
        return applicationUrl(apiPath);
    }

    public void setLogoutPath(String logoutPath)
    {
        this.logoutPath = logoutPath;
    }

    public String getHost()
    {
        return host;
    }

    public void setHost(String host)
    {
        this.host = host;
    }

    public String getPort()
    {
        return port;
    }

    public void setPort(String port)
    {
        this.port = port;
    }

    public String getApplicationPath()
    {
        return applicationPath;
    }

    public void setApplicationPath(String contextPath)
    {
        this.applicationPath = contextPath;
    }

    public String getApiPath()
    {
        return apiPath;
    }

    public void setApiPath(String apiPath)
    {
        this.apiPath = apiPath;
    }

    public String getLoginPath()
    {
        return loginPath;
    }

    public void setLoginPath(String loginPath)
    {
        this.loginPath = loginPath;
    }

    public String getLogoutPath()
    {
        return logoutPath;
    }

    @Override
    public String toString()
    {
        StringBuilder builder = new StringBuilder();
        builder.append("RestClient [\n serverUrl()=");
        builder.append(serverUrl());
        builder.append(", \n applicationUrl()=");
        builder.append(applicationUrl());
        builder.append(", \n loginUrl()=");
        builder.append(loginUrl());
        builder.append(", \n logoutUrl()=");
        builder.append(logoutUrl());
        builder.append(", \n apiUrl()=");
        builder.append(apiUrl());
        builder.append("\n]");
        return builder.toString();
    }
}