Structs2项目举例

Spring + Structs2 + ?

1、Xml配置

<!-- struts-web.xml -->
<struts>
    <constant name="struts.enable.DynamicMethodInvocation" value="true"/>
    <package name="user-package" extends="base-package">
       <action name="userActionUrl" class="userActionBean">
          <result name="userModule">/page/user-module.jsp</result>
       </action>
    </package>
</struts>

<!-- spring-web.xml -->
<bean id="userActionBean" class="com.action.UserAction" scope="prototype">
    <property name="userService" ref="userServiceBean"></property>
</bean>

注：Service、Dao配置略

2、后台Java

（1）基类

import com.opensymphony.xwork2.ActionSupport;
import org.apache.struts2.interceptor.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Map;

public class BaseAction extends ActionSupport
        implements ServletRequestAware, ServletResponseAware, ParameterAware, CookiesAware, SessionAware, ApplicationAware {

    private HttpServletRequest request;
    private HttpServletResponse reponse;

    protected Map<String, String[]> parameters;
    protected Map<String, String> cookies;
    protected Map<String, Object> session;
    protected Map<String, Object> application;

    @Override
    public void setServletRequest(HttpServletRequest request) {
        this.request = request;
    }

    public HttpServletRequest getRequest() {
        return request;
    }

    @Override
    public void setServletResponse(HttpServletResponse response) {
        this.reponse = reponse;
    }

    public HttpServletResponse getReponse() {
        return reponse;
    }

    @Override
    public void setParameters(Map<String, String[]> parameters) {
        this.parameters = parameters;
    }

    @Override
    public void setCookiesMap(Map<String, String> cookies) {
        this.cookies = cookies;
    }

    @Override
    public void setSession(Map<String, Object> session) {
        this.session = session;
    }

    @Override
    public void setApplication(Map<String, Object> application) {
        this.application = application;
    }

}

（2）Action

public class UserAction extends BaseAction {

    @Autowired
    private UserService userService;

    /**
     * 流式 HTML
     */
    public void loadUserHtml() {
        String id = (String) this.getRequest().getParameter("id");
        String htmlJson = userService.getHtmlJson(id);
        this.toHtml(htmlJson);
    }

    /**
     * 字符 HTML
     */
    public String getHtmlString() {
        String id = (String) this.getRequest().getParameter("id");
        String htmlJson = userService.getHtmlJson(id);
        return htmlJson;
    }

    /**
     * html写入流
     */
    public void toHtml(String htmlJson) {
        PrintWriter out = null;
        try {
            HttpServletResponse response = this.getReponse();
            response.setCharacterEncoding("UTF-8");
            response.setContentType("text/html;charset=UTF-8");
            out = response.getWriter();
            out.print(htmlJson);
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (null != out) {
                out.close();
            }
        }
    }

}

（3）Service

    略

（4）Dao

    略

3、前端Js

    jQuery.ajax({
        url: "userActionUrl!loadUserHtml.action?id=" + 1,
        type: "POST",
        contentType: "application/x-www-form-urlencoded;charset=UTF-8",
        dataType: "html",
        cache: false,
        async: false,
        success: function (html) {
            $("#body_div").empty().append(html);
        }
    });