Question

我在opta planner文档中尝试了一个简单的例子

这是我的配置

<?xml version="1.0" encoding="UTF-8"?>
<solver>
    <!-- Domain model configuration -->
    <scanAnnotatedClasses />
    <!-- Score configuration -->
    <scoreDirectorFactory>
        <scoreDefinitionType>HARD_SOFT</scoreDefinitionType>

        <easyScoreCalculatorClass>
            optaplanner.learn.CloudBalancingEasyScoreCalculator
            </easyScoreCalculatorClass>

    </scoreDirectorFactory>
    <!-- Optimization algorithms configuration -->
    <termination>
        <secondsSpentLimit>30</secondsSpentLimit>
    </termination>
</solver>

当我运行应用程序时，我得到以下错误

Exception in thread "main" java.lang.IllegalArgumentException: Unmarshalling of solverConfigResource (solver-config.xml) fails.
    at org.optaplanner.core.impl.solver.XStreamXmlSolverFactory.configure(XStreamXmlSolverFactory.java:114)
    at org.optaplanner.core.api.solver.SolverFactory.createFromXmlResource(SolverFactory.java:108)
    at optaplanner.learn.App.main(App.java:15)
Caused by: com.thoughtworks.xstream.converters.ConversionException: Cannot load java class 
            optaplanner.learn.CloudBalancingEasyScoreCalculator

---- Debugging information ----
message             : Cannot load java class 
            optaplanner.learn.CloudBalancingEasyScoreCalculator

class               : java.lang.Class
required-type       : java.lang.Class
converter-type      : com.thoughtworks.xstream.converters.SingleValueConverterWrapper
wrapped-converter   : com.thoughtworks.xstream.converters.extended.JavaClassConverter
line number         : 11
class[1]            : org.optaplanner.core.config.score.director.ScoreDirectorFactoryConfig
converter-type[1]   : com.thoughtworks.xstream.converters.reflection.ReflectionConverter
class[2]            : org.optaplanner.core.config.solver.SolverConfig

有人遇到过这个问题吗？ Optaplanner无法加载easyscorecalculatorclass。是否需要运行示例应用程序的任何其他设置？

Answer 1

当我将xml标签包装到一行时，它可以工作

<easyScoreCalculatorClass>optaplanner.learn.CloudBalancingEasyScoreCalculator</easyScoreCalculatorClass>

opta planner错误加载得分计算器类

1 个答案: