mybatis通用Mapper，第一次请求结果空指针，刷新又好了? 400 报错

mybatis通用Mapper，第一次请求结果空指针，刷新又好了? 400 报错

这是我的mybatis配置

@Configuration
public class MybatisConfig {

    @Bean
    public SqlSessionFactory sqlSessionFactoryBean(DataSource dataSource) throws Exception {
        SqlSessionFactoryBean factory = new SqlSessionFactoryBean();
        factory.setDataSource(dataSource);
        factory.setTypeAliasesPackage(ProjectConstant.DOMAIN_PACKAGE);

        // 配置分页插件，详情请查阅官方文档
        PageHelper pageHelper = new PageHelper();
        Properties properties = new Properties();
        properties.setProperty("pageSizeZero", "true"); // 分页尺寸为0时查询所有纪录不再执行分页
        properties.setProperty("reasonable", "true");   // 页码<=0 查询第一页，页码>=总页数查询最后一页
        properties.setProperty("supportMethodsArguments", "true");  // 支持通过 Mapper 接口参数来传递分页参数
        pageHelper.setProperties(properties);

        // 添加插件
        factory.setPlugins(new Interceptor[]{pageHelper});

        // 添加XML目录
        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        factory.setMapperLocations(resolver.getResources("classpath*:mybatis/mapper/*.xml"));
        return factory.getObject();
    }

    @Bean
    public MapperScannerConfigurer mapperScannerConfigurer() {
        MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();
        mapperScannerConfigurer.setSqlSessionFactoryBeanName("sqlSessionFactoryBean");
        mapperScannerConfigurer.setBasePackage(ProjectConstant.MAPPER_PACKAGE);

        // 配置通用Mapper，详情请查阅官方文档
        Properties properties = new Properties();
        properties.setProperty("`", ProjectConstant.MAPPER_INTERFACE_REFERENCE);
        properties.setProperty("notEmpty", "false");    // insert、update是否判断字符串类型!='' 即 test="str != null"表达式内是否追加 and str != ''
        properties.setProperty("IDENTITY", "MYSQL");
        mapperScannerConfigurer.setProperties(properties);

        return mapperScannerConfigurer;
    }

}

这是启动类

@SpringBootApplication
@ComponentScan(basePackages = "com.uhope.rl")
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    /**
     * 解决页面跨域访问问题
     * @return FilterRegistrationBean
     */
    @Bean
    public FilterRegistrationBean omsFilter() {
        FilterRegistrationBean registration = new FilterRegistrationBean();
        registration.setFilter(new ServiceFilter());
        registration.addUrlPatterns("/*");
        //registration.addInitParameter("paramName", "paramValue");
        registration.setName("MyFilter");
        registration.setOrder(1);
        return registration;
    }
}

BUG是这样的，重启项目之后，前端第一次请求，我后台就崩了，报空指针，前端刷新一下发送第二次请求，我这里又都好了没有了空指针，DEBUG过了，每次参数都是有的，不会有参数不存在的问题，如果是我SQL代码问题，那第二次请求肯定也是空，所以排除了，下面是我XML代码

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.uhope.rl.project.mapper.PmProjectMapper">
  <resultMap id="BaseResultMap" type="com.uhope.rl.project.domain.PmProject">
    <!--
      WARNING - @mbg.generated
    -->
    <id column="ID" jdbcType="VARCHAR" property="id" />
    <result column="RECVER" jdbcType="BIGINT" property="recver" />
    <result column="COMPONENTID" jdbcType="VARCHAR" property="componentid" />
    <result column="NAME" jdbcType="VARCHAR" property="name" />
    <result column="CONSTRUCTIONCONTENT" jdbcType="VARCHAR" property="constructioncontent" />
    <result column="PARENTS" jdbcType="VARCHAR" property="parents" />
    <result column="PROJECTTARGET" jdbcType="VARCHAR" property="projecttarget" />
    <result column="PROJECTSTATUS" jdbcType="VARCHAR" property="projectstatus" />
    <result column="INVESTMENTTYPE" jdbcType="INTEGER" property="investmenttype" />
    <result column="TOTALINVESTMENT" jdbcType="DOUBLE" property="totalinvestment" />
    <result column="INSPECTERID" jdbcType="VARCHAR" property="inspecterid" />
    <result column="RIVERID" jdbcType="VARCHAR" property="riverid" />
    <result column="RIVERNAME" jdbcType="VARCHAR" property="rivername" />
    <result column="PLANSTARTTIME" jdbcType="TIMESTAMP" property="planstarttime" />
    <result column="PLANENDTIME" jdbcType="TIMESTAMP" property="planendtime" />
    <result column="STARTTIME" jdbcType="TIMESTAMP" property="starttime" />
    <result column="ENDTIME" jdbcType="TIMESTAMP" property="endtime" />
    <result column="PROGRESS" jdbcType="DOUBLE" property="progress" />
    <result column="VISUALIZEPROGRESS" jdbcType="DOUBLE" property="visualizeprogress" />
    <result column="CREATETIME" jdbcType="TIMESTAMP" property="createtime" />
    <result column="CREATEUSER" jdbcType="VARCHAR" property="createuser" />
    <result column="MODIFYTIME" jdbcType="TIMESTAMP" property="modifytime" />
    <result column="MODIFYUSER" jdbcType="VARCHAR" property="modifyuser" />
    <result column="AUDITUSERID" jdbcType="VARCHAR" property="audituserid" />
    <result column="AUDITTIME" jdbcType="TIMESTAMP" property="audittime" />
    <result column="AUDITSUGGESTION" jdbcType="VARCHAR" property="auditsuggestion" />
    <result column="AUDITSTATUS" jdbcType="INTEGER" property="auditstatus" />
    <result column="RESPONSIBILITYUNIT" jdbcType="VARCHAR" property="responsibilityunit" />
    <result column="CONSTRUCTIONUNITCONTACTER" jdbcType="VARCHAR" property="constructionunitcontacter" />
    <result column="CONSTRUCTIONUNITCONTACTERTEL" jdbcType="VARCHAR" property="constructionunitcontactertel" />
    <result column="CONSTRUCTIONUNITNAME" jdbcType="VARCHAR" property="constructionunitname" />
    <result column="CONSTRUCTIONUNITADDRESS" jdbcType="VARCHAR" property="constructionunitaddress" />
    <result column="SUPERVISIONUNITCONTACTER" jdbcType="VARCHAR" property="supervisionunitcontacter" />
    <result column="SUPERVISIONUNITCONTACTERTEL" jdbcType="VARCHAR" property="supervisionunitcontactertel" />
    <result column="SUPERVISIONUNITNAME" jdbcType="VARCHAR" property="supervisionunitname" />
    <result column="SUPERVISIONUNITADDRESS" jdbcType="VARCHAR" property="supervisionunitaddress" />
    <result column="PRINCIPAL" jdbcType="VARCHAR" property="principal" />
    <result column="PRINCIPALID" jdbcType="VARCHAR" property="principalid" />
    <result column="longitude" jdbcType="DOUBLE" property="longitude" />
    <result column="latitude" jdbcType="DOUBLE" property="latitude" />
    <result column="province_id" jdbcType="BIGINT" property="provinceId" />
    <result column="city_id" jdbcType="BIGINT" property="cityId" />
    <result column="county_id" jdbcType="BIGINT" property="countyId" />
    <result column="town_id" jdbcType="BIGINT" property="townId" />
    <result column="village_id" jdbcType="BIGINT" property="villageId" />
    <result column="main_class_id" jdbcType="VARCHAR" property="mainClassId" />
    <result column="sub_class_id" jdbcType="VARCHAR" property="subClassId" />
    <result column="main_class_name" jdbcType="VARCHAR" property="mainClassName" />
    <result column="sub_class_name" jdbcType="VARCHAR" property="subClassName" />
    <result column="source" jdbcType="INTEGER" property="source" />
    <result column="status" jdbcType="INTEGER" property="status" />
    <result column="provin_cereach" jdbcType="VARCHAR" property="provinCereach" />
    <result column="city_reach" jdbcType="VARCHAR" property="cityReach" />
    <result column="county_reach" jdbcType="VARCHAR" property="countyReach" />
    <result column="town_reach" jdbcType="VARCHAR" property="townReach" />
    <result column="village_reach" jdbcType="VARCHAR" property="villageReach" />
    <result column="writey_type" jdbcType="CHAR" property="writeyType" />
    <result column="comp_level" jdbcType="INTEGER" property="compLevel" />
    <result column="management_unit_return" jdbcType="VARCHAR" property="managementUnitReturn" />
    <result column="the_total_project" jdbcType="DOUBLE" property="theTotalProject" />
    <result column="enact_project_date" jdbcType="TIMESTAMP" property="enactProjectDate" />
    <result column="provin_reach_length" jdbcType="DOUBLE" property="provinReachLength" />
    <result column="city_reach_length" jdbcType="DOUBLE" property="cityReachLength" />
    <result column="arithmetical_unit" jdbcType="VARCHAR" property="arithmeticalUnit" />
    <result column="principal_unit" jdbcType="VARCHAR" property="principalUnit" />
    <result column="reach_id" jdbcType="VARCHAR" property="reachId" />
    <result column="reach_name" jdbcType="VARCHAR" property="reachName" />
    <result column="target_one" jdbcType="DOUBLE" property="targetOne" />
    <result column="target_one_unit" jdbcType="VARCHAR" property="targetOneUnit" />
    <result column="target_two" jdbcType="DOUBLE" property="targetTwo" />
    <result column="target_two_unit" jdbcType="VARCHAR" property="targetTwoUnit" />
    <result column="principal_tel" jdbcType="VARCHAR" property="principalTel" />
    <result column="import_no" jdbcType="VARCHAR" property="importNo" />
    <result column="basinid" jdbcType="VARCHAR" property="basinid" />
    <result column="basintype" jdbcType="VARCHAR" property="basintype" />
    <result column="basinname" jdbcType="VARCHAR" property="basinname" />
    <result column="srcid" jdbcType="VARCHAR" property="srcid" />
    <result column="section" jdbcType="VARCHAR" property="section" />
    <result column="sectionid" jdbcType="VARCHAR" property="sectionid" />
    <result column="teskType" jdbcType="VARCHAR" property="tesktype" />
    <result column="isInferIorV" jdbcType="INTEGER" property="isinferiorv" />
    <result column="unithz" jdbcType="VARCHAR" property="unithz" />
    <result column="unithzid" jdbcType="VARCHAR" property="unithzid" />
    <result column="inferiorV_water_level" jdbcType="INTEGER" property="inferiorvWaterLevel" />
    <result column="inferiorV_water_name" jdbcType="VARCHAR" property="inferiorvWaterName" />
    <result column="inferiorV_water_no" jdbcType="VARCHAR" property="inferiorvWaterNo" />
    <result column="uploadtime" jdbcType="TIMESTAMP" property="uploadtime" />
    <result column="src" jdbcType="VARCHAR" property="src" />
  </resultMap>

  <resultMap id="ResultMap" type="com.uhope.rl.project.dto.PmProjectDTO">
    <!--
      WARNING - @mbg.generated
    -->
    <id column="ID" jdbcType="VARCHAR" property="id" />
    <result column="RECVER" jdbcType="BIGINT" property="recver" />
    <result column="COMPONENTID" jdbcType="VARCHAR" property="componentid" />
    <result column="NAME" jdbcType="VARCHAR" property="name" />
    <result column="CONSTRUCTIONCONTENT" jdbcType="VARCHAR" property="constructioncontent" />
    <result column="PARENTS" jdbcType="VARCHAR" property="parents" />
    <result column="PROJECTTARGET" jdbcType="VARCHAR" property="projecttarget" />
    <result column="PROJECTSTATUS" jdbcType="VARCHAR" property="projectstatus" />
    <result column="INVESTMENTTYPE" jdbcType="INTEGER" property="investmenttype" />
    <result column="TOTALINVESTMENT" jdbcType="DOUBLE" property="totalinvestment" />
    <result column="INSPECTERID" jdbcType="VARCHAR" property="inspecterid" />
    <result column="RIVERID" jdbcType="VARCHAR" property="riverid" />
    <result column="RIVERNAME" jdbcType="VARCHAR" property="rivername" />
    <result column="PLANSTARTTIME" jdbcType="TIMESTAMP" property="planstarttime" />
    <result column="PLANENDTIME" jdbcType="TIMESTAMP" property="planendtime" />
    <result column="STARTTIME" jdbcType="TIMESTAMP" property="starttime" />
    <result column="ENDTIME" jdbcType="TIMESTAMP" property="endtime" />
    <result column="PROGRESS" jdbcType="DOUBLE" property="progress" />
    <result column="VISUALIZEPROGRESS" jdbcType="DOUBLE" property="visualizeprogress" />
    <result column="CREATETIME" jdbcType="TIMESTAMP" property="createtime" />
    <result column="CREATEUSER" jdbcType="VARCHAR" property="createuser" />
    <result column="MODIFYTIME" jdbcType="TIMESTAMP" property="modifytime" />
    <result column="MODIFYUSER" jdbcType="VARCHAR" property="modifyuser" />
    <result column="AUDITUSERID" jdbcType="VARCHAR" property="audituserid" />
    <result column="AUDITTIME" jdbcType="TIMESTAMP" property="audittime" />
    <result column="AUDITSUGGESTION" jdbcType="VARCHAR" property="auditsuggestion" />
    <result column="AUDITSTATUS" jdbcType="INTEGER" property="auditstatus" />
    <result column="RESPONSIBILITYUNIT" jdbcType="VARCHAR" property="responsibilityunit" />
    <result column="CONSTRUCTIONUNITCONTACTER" jdbcType="VARCHAR" property="constructionunitcontacter" />
    <result column="CONSTRUCTIONUNITCONTACTERTEL" jdbcType="VARCHAR" property="constructionunitcontactertel" />
    <result column="CONSTRUCTIONUNITNAME" jdbcType="VARCHAR" property="constructionunitname" />
    <result column="CONSTRUCTIONUNITADDRESS" jdbcType="VARCHAR" property="constructionunitaddress" />
    <result column="SUPERVISIONUNITCONTACTER" jdbcType="VARCHAR" property="supervisionunitcontacter" />
    <result column="SUPERVISIONUNITCONTACTERTEL" jdbcType="VARCHAR" property="supervisionunitcontactertel" />
    <result column="SUPERVISIONUNITNAME" jdbcType="VARCHAR" property="supervisionunitname" />
    <result column="SUPERVISIONUNITADDRESS" jdbcType="VARCHAR" property="supervisionunitaddress" />
    <result column="PRINCIPAL" jdbcType="VARCHAR" property="principal" />
    <result column="PRINCIPALID" jdbcType="VARCHAR" property="principalid" />
    <result column="longitude" jdbcType="DOUBLE" property="longitude" />
    <result column="latitude" jdbcType="DOUBLE" property="latitude" />
    <result column="province_id" jdbcType="BIGINT" property="provinceId" />
    <result column="city_id" jdbcType="BIGINT" property="cityId" />
    <result column="county_id" jdbcType="BIGINT" property="countyId" />
    <result column="town_id" jdbcType="BIGINT" property="townId" />
    <result column="village_id" jdbcType="BIGINT" property="villageId" />
    <result column="main_class_id" jdbcType="VARCHAR" property="mainClassId" />
    <result column="sub_class_id" jdbcType="VARCHAR" property="subClassId" />
    <result column="main_class_name" jdbcType="VARCHAR" property="mainClassName" />
    <result column="sub_class_name" jdbcType="VARCHAR" property="subClassName" />
    <result column="source" jdbcType="INTEGER" property="source" />
    <result column="status" jdbcType="INTEGER" property="status" />
    <result column="provin_cereach" jdbcType="VARCHAR" property="provinCereach" />
    <result column="city_reach" jdbcType="VARCHAR" property="cityReach" />
    <result column="county_reach" jdbcType="VARCHAR" property="countyReach" />
    <result column="town_reach" jdbcType="VARCHAR" property="townReach" />
    <result column="village_reach" jdbcType="VARCHAR" property="villageReach" />
    <result column="writey_type" jdbcType="CHAR" property="writeyType" />
    <result column="comp_level" jdbcType="INTEGER" property="compLevel" />
    <result column="management_unit_return" jdbcType="VARCHAR" property="managementUnitReturn" />
    <result column="the_total_project" jdbcType="DOUBLE" property="theTotalProject" />
    <result column="enact_project_date" jdbcType="TIMESTAMP" property="enactProjectDate" />
    <result column="provin_reach_length" jdbcType="DOUBLE" property="provinReachLength" />
    <result column="city_reach_length" jdbcType="DOUBLE" property="cityReachLength" />
    <result column="arithmetical_unit" jdbcType="VARCHAR" property="arithmeticalUnit" />
    <result column="principal_unit" jdbcType="VARCHAR" property="principalUnit" />
    <result column="reach_id" jdbcType="VARCHAR" property="reachId" />
    <result column="reach_name" jdbcType="VARCHAR" property="reachName" />
    <result column="target_one" jdbcType="DOUBLE" property="targetOne" />
    <result column="target_one_unit" jdbcType="VARCHAR" property="targetOneUnit" />
    <result column="target_two" jdbcType="DOUBLE" property="targetTwo" />
    <result column="target_two_unit" jdbcType="VARCHAR" property="targetTwoUnit" />
    <result column="principal_tel" jdbcType="VARCHAR" property="principalTel" />
    <result column="import_no" jdbcType="VARCHAR" property="importNo" />
    <result column="basinid" jdbcType="VARCHAR" property="basinid" />
    <result column="basintype" jdbcType="VARCHAR" property="basintype" />
    <result column="basinname" jdbcType="VARCHAR" property="basinname" />
    <result column="srcid" jdbcType="VARCHAR" property="srcid" />
    <result column="section" jdbcType="VARCHAR" property="section" />
    <result column="sectionid" jdbcType="VARCHAR" property="sectionid" />
    <result column="teskType" jdbcType="VARCHAR" property="tesktype" />
    <result column="isInferIorV" jdbcType="INTEGER" property="isinferiorv" />
    <result column="unithz" jdbcType="VARCHAR" property="unithz" />
    <result column="unithzid" jdbcType="VARCHAR" property="unithzid" />
    <result column="inferiorV_water_level" jdbcType="INTEGER" property="inferiorvWaterLevel" />
    <result column="inferiorV_water_name" jdbcType="VARCHAR" property="inferiorvWaterName" />
    <result column="inferiorV_water_no" jdbcType="VARCHAR" property="inferiorvWaterNo" />
    <result column="uploadtime" jdbcType="TIMESTAMP" property="uploadtime" />
    <result column="src" jdbcType="VARCHAR" property="src" />
    <result column="dict_name" jdbcType="VARCHAR" property="dictName" />
    <result column="INVESTMENTTYPENAME" jdbcType="VARCHAR" property="investmentTypeName" />
  </resultMap>

  <select id="downBox" resultMap="BaseResultMap">
    SELECT NAME,ID,PRINCIPAL,PRINCIPALID,PROJECTSTATUS FROM pm_project
  </select>

  <select id="findByQuery" resultMap="ResultMap" parameterType="com.uhope.rl.project.dto.PmProjectDTO">
    SELECT
    pp.*, sd.dict_name
    FROM
    pm_project pp
    JOIN sm_dictionary sd ON pp.PROJECTSTATUS = sd.id
    <where>
      <if test="name != null">AND pp.`NAME` LIKE concat('%',#{name},'%')</if>
      <if test="status != null">AND pp.status = #{status}</if>
      <if test="subClassName != null">AND pp.sub_class_name LIKE concat('%',#{subClassName},'%')</if>
      <if test="projectstatus != null">AND pp.PROJECTSTATUS = #{projectstatus}</if>
      <if test="totalinvestment != null">AND pp.TOTALINVESTMENT BETWEEN #{totalinvestment} AND #{number}</if>
    </where>
  </select>

</mapper>

请问有人知道这是为什么吗？