OptaPlanner 执行服务器无法将字符串 () 转换为类型 (java.time.LocalDateTime)

Question

尝试从 Workbench 设置来自 "Try Samples" 的员工名册，并尝试设置它以通过 REST API 访问解决方案。我在使用 POST 上传我的数据集时遇到问题，我在下面详细列出了我尝试过的和遇到的问题。

在此之前，当我注册 (PUT) 我的求解器 config.xml 时，我的状态是 NOT_SOLVING。这是我们将获得的实际状态吗？

解析日期格式时出错。

<startTime>2017-01-01T00:00</startTime>

并尝试了如下不同的格式，但没有帮助。

 <startTime>2017-01-01 00:00</startTime>

环境详细信息：

wildfly-10.0.0.Final
kie-server(Execution Server) - 7.5.0.Final 
Workbench(for WildFly10)

放置：http://localhost:8080/kie-server/services/rest/server/containers/employeerostering/solvers/employeerosteringSolver

请求正文：

<solver-instance>
  <solver-config-file>employeerostering/employeerostering/EmployeeRosteringSolverConfig.solver.xml</solver-config-file>
</solver-instance>

获取：http://localhost:8080/kie-server/services/rest/server/containers/employeerostering/solvers/employeerosteringSolver/bestsolution

收到回复：

<solver-instance>
  <container-id>employeerostering</container-id>
  <solver-id>employeerosteringSolver</solver-id>
  <solver-config-file>employeerostering/employeerostering/EmployeeRosteringSolverConfig.solver.xml</solver-config-file>
  <status>NOT_SOLVING</status>
  <score />
</solver-instance>

POST: http://localhost:8080/kie-server/services/rest/server/containers/employeerostering/solvers/employeerosteringSolver/state/solving

请求正文：

<planning-problem class="employeerostering.employeerostering.EmployeeRoster">
  <employeeList>
    <employeerostering.employeerostering.Employee>
      <name>John</name>
      <skills>
        <employeerostering.employeerostering.Skill>
          <name>consulting</name>
        </employeerostering.employeerostering.Skill>
        <employeerostering.employeerostering.Skill>
          <name>translation</name>
        </employeerostering.employeerostering.Skill>
      </skills>
    </employeerostering.employeerostering.Employee>
    <employeerostering.employeerostering.Employee>
      <name>Ann</name>
      <skills>
        <employeerostering.employeerostering.Skill reference="../../../employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill"/>
      </skills>
    </employeerostering.employeerostering.Employee>
    <employeerostering.employeerostering.Employee>
      <name>Paul</name>
      <skills>
        <employeerostering.employeerostering.Skill>
          <name>maintenance</name>
        </employeerostering.employeerostering.Skill>
      </skills>
    </employeerostering.employeerostering.Employee>
    <employeerostering.employeerostering.Employee>
      <name>Carla</name>
      <skills>
        <employeerostering.employeerostering.Skill reference="../../../employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill"/>
        <employeerostering.employeerostering.Skill reference="../../../employeerostering.employeerostering.Employee[3]/skills/employeerostering.employeerostering.Skill"/>
      </skills>
    </employeerostering.employeerostering.Employee>
    <employeerostering.employeerostering.Employee>
      <name>Brian</name>
      <skills>
        <employeerostering.employeerostering.Skill reference="../../../employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill[2]"/>
      </skills>
    </employeerostering.employeerostering.Employee>
    <employeerostering.employeerostering.Employee>
      <name>Unskilled</name>
      <skills class="empty-list"/>
    </employeerostering.employeerostering.Employee>
  </employeeList>
  <shiftList>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-01T00:00</startTime>
        <endTime>2017-01-01T07:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-01T08:00</startTime>
        <endTime>2017-01-01T15:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee[3]/skills/employeerostering.employeerostering.Skill"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-01T16:00</startTime>
        <endTime>2017-01-01T23:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill[2]"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-02T00:00</startTime>
        <endTime>2017-01-02T07:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill[2]"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-02T08:00</startTime>
        <endTime>2017-01-02T15:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee[3]/skills/employeerostering.employeerostering.Skill"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-02T16:00</startTime>
        <endTime>2017-01-02T23:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-03T00:00</startTime>
        <endTime>2017-01-03T07:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-03T08:00</startTime>
        <endTime>2017-01-03T15:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill[2]"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-03T16:00</startTime>
        <endTime>2017-01-03T23:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill[2]"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-04T00:00</startTime>
        <endTime>2017-01-04T07:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee[3]/skills/employeerostering.employeerostering.Skill"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-04T08:00</startTime>
        <endTime>2017-01-04T15:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill[2]"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-04T16:00</startTime>
        <endTime>2017-01-04T23:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-05T00:00</startTime>
        <endTime>2017-01-05T07:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill[2]"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-05T08:00</startTime>
        <endTime>2017-01-05T15:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-05T16:00</startTime>
        <endTime>2017-01-05T23:59</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee[3]/skills/employeerostering.employeerostering.Skill"/>
    </employeerostering.employeerostering.Shift>
  </shiftList>
  <skillList>
    <employeerostering.employeerostering.Skill reference="../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill"/>
    <employeerostering.employeerostering.Skill reference="../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill[2]"/>
    <employeerostering.employeerostering.Skill reference="../../employeeList/employeerostering.employeerostering.Employee[3]/skills/employeerostering.employeerostering.Skill"/>
  </skillList>
  <timeslotList>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[2]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[3]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[4]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[5]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[6]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[7]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[8]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[9]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[10]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[11]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[12]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[13]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[14]/timeslot"/>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift[15]/timeslot"/>
  </timeslotList>
  <shiftAssignmentList>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[2]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[3]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[4]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[5]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[6]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[7]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[8]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[9]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[10]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[11]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[12]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[13]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[14]"/>
    </employeerostering.employeerostering.ShiftAssignment>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift[15]"/>
    </employeerostering.employeerostering.ShiftAssignment>
  </shiftAssignmentList>
  <dayOffRequestList>
    <employeerostering.employeerostering.DayOffRequest>
      <employee reference="../../../employeeList/employeerostering.employeerostering.Employee"/>
      <date>2017-01-01</date>
    </employeerostering.employeerostering.DayOffRequest>
    <employeerostering.employeerostering.DayOffRequest>
      <employee reference="../../../employeeList/employeerostering.employeerostering.Employee[2]"/>
      <date>2017-01-02</date>
    </employeerostering.employeerostering.DayOffRequest>
  </dayOffRequestList>
</planning-problem>

收到响应：500 内部服务器错误

以下是从控制台捕获的日志。

 -------------------------------: com.thoughtworks.xstream.converters.ConversionException: 
---- Debugging information ----
cause-exception     : java.lang.IllegalStateException
cause-message       : Failed to convert string (2017-01-01 00:00) to type (java.time.LocalDateTime).
class               : java.time.LocalDateTime
required-type       : java.time.LocalDateTime
converter-type      : org.kie.soup.commons.xstream.LocalDateTimeXStreamConverter
path                : /planning-problem/shiftList/employeerostering.employeerostering.Shift/timeslot/startTime
line number         : 49
class[1]            : employeerostering.employeerostering.Timeslot
converter-type[1]   : com.thoughtworks.xstream.converters.reflection.ReflectionConverter
class[2]            : employeerostering.employeerostering.Shift
class[3]            : java.util.ArrayList
converter-type[2]   : com.thoughtworks.xstream.converters.collections.CollectionConverter
class[4]            : employeerostering.employeerostering.EmployeeRoster
version             : 7.5.0.Final

Answer 1

问题出在给定的日期格式上。我通过反编译引起问题的罐子来解决问题。

实际上它期望的日期格式是：

<startTime>2017-01-01T16:00:01.001</startTime>

但我在很多例子中看到的是：

<startTime>2017-01-01T00:00</startTime>

Answer 2

我在 Optaplanner 7.9.0 上遇到了同样的问题，但错误不同

"Unexpected error during processing: Can't unmarshall input string"

提交的解决方案 xml 是从这篇 jboss 文章中复制的（如果使用上面的 xml，我会得到同样的错误）。

OptaPlanner 执行服务器无法将字符串 () 转换为类型 (java.time.LocalDateTime)

OptaPlanner Execution server failed to convert string () to type (java.time.LocalDateTime)

rest

optaplanner