lean_5/src/main/java/com/fr/plugin/http/ModApi.java

package com.fr.plugin.http;

import com.fr.decision.fun.impl.BaseHttpHandler;
import com.fr.json.JSONObject;
import com.fr.plugin.MyDecisionDBAccessProvider;
import com.fr.plugin.dao.MyDao;
import com.fr.plugin.entity.MyEntity;
import com.fr.stable.db.accessor.DBAccessor;
import com.fr.stable.query.QueryFactory;
import com.fr.stable.query.restriction.RestrictionFactory;
import com.fr.third.springframework.web.bind.annotation.RequestMethod;
import com.fr.web.utils.WebUtils;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Date;
import java.util.UUID;

public class ModApi extends BaseHttpHandler {
    @Override
    public RequestMethod getMethod() {
        return null;
    }

    @Override
    public String getPath() {
        return "/mod";
    }

    @Override
    public boolean isPublic() {
        return true;
    }

    @Override
    public void handle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws Exception {
        DBAccessor dbAccessor = MyDecisionDBAccessProvider.getDbAccessor();
        //通过这两个函数获取的参数可以避免中文乱码和空指针
        String userName = WebUtils.getHTTPRequestParameter(httpServletRequest, "userName");
        Integer source = WebUtils.getHTTPRequestIntParameter(httpServletRequest, "source");
        //先查找要更新的用户
        MyEntity entity = dbAccessor.runQueryAction(daoContext -> daoContext.getDAO(MyDao.class)
                .findOne(QueryFactory.create().addRestriction(RestrictionFactory.eq("userName", userName)))
        );
        if (entity != null) {
            entity.setSource(source);
            dbAccessor.runDMLAction(daoContext -> {
                //执行更新操作
                daoContext.getDAO(MyDao.class).update(entity);
                return null;
            });
            JSONObject jsonObject = new JSONObject();
            jsonObject.put("msg", "success");
            jsonObject.put("code", 200);
            WebUtils.printAsJSON(httpServletResponse, jsonObject);
        } else {
            JSONObject jsonObject = new JSONObject();
            jsonObject.put("msg", "user not find");
            jsonObject.put("code", -1);
            WebUtils.printAsJSON(httpServletResponse, jsonObject);
        }
    }
}