5.3. 使用 REST API 访问解决问题

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在部署或重新创建示例地址后，您可以使用 REST API 访问它。

您必须使用 REST API 注册解决器实例。然后，您可以提供数据集并检索优化的解决方案。

先决条件

根据本文档中前面的章节设置和部署员工的 rostering 项目。您可以部署示例项目，如第 5.1 节 “在 Business Central 中部署 employees rostering 示例项目” 所述，或者重新创建项目，如第 5.2 节 “重新排序员工降级示例项目” 所述。

5.3.1. 使用 REST API 注册 Solver

您必须使用 REST API 注册 solver 实例，然后才能使用 solver。

每个临时解决方案都能够一次优化一个规划问题。

流程

使用以下标头创建 HTTP 请求：

authorization: admin:admin
X-KIE-ContentType: xstream
content-type: application/xml

使用以下请求注册 Solver：
PUT
http://localhost:8080/kie-server/services/rest/server/containers/employeerostering_1.0.0-SNAPSHOT/solvers/EmployeeRosteringSolver
请求正文
```
<solver-instance>
  <solver-config-file>employeerostering/employeerostering/EmployeeRosteringSolverConfig.solver.xml</solver-config-file>
</solver-instance>
```

5.3.2. 使用 REST API 调用 Solver

在注册了解决器实例后，您可以使用 REST API 将数据设置为解决方法，并检索优化的解决方案。

流程

使用以下标头创建 HTTP 请求：

authorization: admin:admin
X-KIE-ContentType: xstream
content-type: application/xml

使用数据收集向 Solver 提交请求，如下例所示：

POST

http://localhost:8080/kie-server/services/rest/server/containers/employeerostering_1.0.0-SNAPSHOT/solvers/EmployeeRosteringSolver/state/solving

请求正文

<employeerostering.employeerostering.EmployeeRoster>
  <employeeList>
    <employeerostering.employeerostering.Employee>
      <name>John</name>
      <skills>
        <employeerostering.employeerostering.Skill>
          <name>reading</name>
        </employeerostering.employeerostering.Skill>
      </skills>
    </employeerostering.employeerostering.Employee>
    <employeerostering.employeerostering.Employee>
      <name>Mary</name>
      <skills>
        <employeerostering.employeerostering.Skill>
          <name>writing</name>
        </employeerostering.employeerostering.Skill>
      </skills>
    </employeerostering.employeerostering.Employee>
    <employeerostering.employeerostering.Employee>
      <name>Petr</name>
      <skills>
        <employeerostering.employeerostering.Skill>
          <name>speaking</name>
        </employeerostering.employeerostering.Skill>
      </skills>
    </employeerostering.employeerostering.Employee>
  </employeeList>
  <shiftList>
    <employeerostering.employeerostering.Shift>
      <timeslot>
        <startTime>2017-01-01T00:00:00</startTime>
        <endTime>2017-01-01T01:00:00</endTime>
      </timeslot>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot reference="../../employeerostering.employeerostering.Shift/timeslot"/>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee[3]/skills/employeerostering.employeerostering.Skill"/>
    </employeerostering.employeerostering.Shift>
    <employeerostering.employeerostering.Shift>
      <timeslot reference="../../employeerostering.employeerostering.Shift/timeslot"/>
      <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee[2]/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[3]/skills/employeerostering.employeerostering.Skill"/>
    <employeerostering.employeerostering.Skill reference="../../employeeList/employeerostering.employeerostering.Employee[2]/skills/employeerostering.employeerostering.Skill"/>
  </skillList>
  <timeslotList>
    <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift/timeslot"/>
  </timeslotList>
  <dayOffRequestList/>
  <shiftAssignmentList>
    <employeerostering.employeerostering.ShiftAssignment>
      <shift reference="../../../shiftList/employeerostering.employeerostering.Shift"/>
    </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[2]"/>
    </employeerostering.employeerostering.ShiftAssignment>
  </shiftAssignmentList>
</employeerostering.employeerostering.EmployeeRoster>

请求最佳解决方案以寻求规划问题：

GET

http://localhost:8080/kie-server/services/rest/server/containers/employeerostering_1.0.0-SNAPSHOT/solvers/EmployeeRosteringSolver/bestsolution

响应示例

<solver-instance>
  <container-id>employee-rostering</container-id>
  <solver-id>solver1</solver-id>
  <solver-config-file>employeerostering/employeerostering/EmployeeRosteringSolverConfig.solver.xml</solver-config-file>
  <status>NOT_SOLVING</status>
  <score scoreClass="org.optaplanner.core.api.score.buildin.hardsoft.HardSoftScore">0hard/0soft</score>
  <best-solution class="employeerostering.employeerostering.EmployeeRoster">
    <employeeList>
      <employeerostering.employeerostering.Employee>
        <name>John</name>
        <skills>
          <employeerostering.employeerostering.Skill>
            <name>reading</name>
          </employeerostering.employeerostering.Skill>
        </skills>
      </employeerostering.employeerostering.Employee>
      <employeerostering.employeerostering.Employee>
        <name>Mary</name>
        <skills>
          <employeerostering.employeerostering.Skill>
            <name>writing</name>
          </employeerostering.employeerostering.Skill>
        </skills>
      </employeerostering.employeerostering.Employee>
      <employeerostering.employeerostering.Employee>
        <name>Petr</name>
        <skills>
          <employeerostering.employeerostering.Skill>
            <name>speaking</name>
          </employeerostering.employeerostering.Skill>
        </skills>
      </employeerostering.employeerostering.Employee>
    </employeeList>
    <shiftList>
      <employeerostering.employeerostering.Shift>
        <timeslot>
          <startTime>2017-01-01T00:00:00</startTime>
          <endTime>2017-01-01T01:00:00</endTime>
        </timeslot>
        <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee/skills/employeerostering.employeerostering.Skill"/>
      </employeerostering.employeerostering.Shift>
      <employeerostering.employeerostering.Shift>
        <timeslot reference="../../employeerostering.employeerostering.Shift/timeslot"/>
        <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee[3]/skills/employeerostering.employeerostering.Skill"/>
      </employeerostering.employeerostering.Shift>
      <employeerostering.employeerostering.Shift>
        <timeslot reference="../../employeerostering.employeerostering.Shift/timeslot"/>
        <requiredSkill reference="../../../employeeList/employeerostering.employeerostering.Employee[2]/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[3]/skills/employeerostering.employeerostering.Skill"/>
      <employeerostering.employeerostering.Skill reference="../../employeeList/employeerostering.employeerostering.Employee[2]/skills/employeerostering.employeerostering.Skill"/>
    </skillList>
    <timeslotList>
      <employeerostering.employeerostering.Timeslot reference="../../shiftList/employeerostering.employeerostering.Shift/timeslot"/>
    </timeslotList>
    <dayOffRequestList/>
    <shiftAssignmentList/>
    <score>0hard/0soft</score>
  </best-solution>
</solver-instance>

5.3. 使用 REST API 访问解决问题

5.3.1. 使用 REST API 注册 Solver

5.3.2. 使用 REST API 调用 Solver

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