NHMicro 1.2.9 发布,支持service层的sql替换

  

NHMicro 1.2.9 发布,此版本支持在service层做sql模板替换后的增删改查操作

MicroServiceTemplateSupport类中添加方法

public Map getInfoList4PageServiceByRep(String countSql,String sql, Map paramMap, Map pageMap)

public Integer updateInfoServiceByRep(String sql,Map paramMap)

public List getInfoListAllServiceByReq(String sql,Map paramMap)

public Map getSingleInfoServiceByRep(String sql,Map requestParamMap)

这些方法执行sql支持参数替换

替换的语法是使用velocity语法

例如:

判断是否为null #if(${param.p1})

判断是否为"" #if(${param.p1}!='')

判断不为null且不为"" #if($!{param.p1}!='')

#sqlreplace是MicroServiceTemplate中的特殊标记,用来做?占位符替换,类似mybatis中的#替换符。使用#sqlreplace时会在返回的placeList中追加参数值。

例如以下的代码:

Map paramMap=new HashMap();

        paramMap.put("p1", "1");

        paramMap.put("p2", "2");

        paramMap.put("p3", "3");

        paramMap.put("p4", "4");

        paramMap.put("p5", "5");

        String sql=

            "select * from aaa where 1=1"+

                "#if(\${param.p1})"+

                    " and c1='\${param.p2}'   "+

                "#end"+

                "#if(\${param.p2})"+

                    " and c2= #sqlreplace(\${param.p2}) "+

                "#end"+

                "#if(\${param.p3})"+

                    " and c3 like '%\${param.p3}%' "+

                "#end"

                ;

getInfoListAllServiceByReq(sql, paramMap);

返回如下的sql替换结果

实际getInfoListAllServiceByReq方法内部执行的sql是:

select * from aaa where 1=1and c1=1  and c2=?  and c3 like '%3%'
 

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转载自www.oschina.net/news/106684/nhmicro-1-2-9-released