Java . lang . illegalargumentexception:无效的布尔值(" $ { com . test . is tenable ")

Question

导致我获得* *的原因是:org . spring framework . beans . typemismatch异常:无法将“java.lang.String”类型的值转换为所需的“java.lang.Boolean”类型；嵌套异常是Java . lang . illegalargumentexception:* *

我相信这是由于缺少Spring占位符配置。但我已经在应用程序上下文中初始化了bean，但仍然会出现此错误。有人能帮我吗？？

    @Value("${com.test.isTestEnable")
    public Boolean isTestEnable;

Spring属性类

public class SpringPropertiesUtil extends PropertyPlaceholderConfigurer {

    private static HashMap<String, String> systemPropertiesMap;

    private int springSystemPropertiesMode = SYSTEM_PROPERTIES_MODE_FALLBACK;

    public static String getProperty(final String name) {
        return systemPropertiesMap.get(name);
    }

    @Override
    protected void processProperties(final ConfigurableListableBeanFactory beanFactory, final Properties props) throws BeansException {
        super.processProperties(beanFactory, props);
        systemPropertiesMap = new HashMap<String, String>();
        for (final Object key : props.keySet()) {
            final String keyStr = key.toString();
            final String valueStr = resolvePlaceholder(keyStr, props, springSystemPropertiesMode);
            systemPropertiesMap.put(keyStr, valueStr);
        }
    }

    @Override
    public void setSystemPropertiesMode(final int systemPropertiesMode) {
        super.setSystemPropertiesMode(systemPropertiesMode);
        springSystemPropertiesMode = systemPropertiesMode;
    }

我的应用程序上下文文件

  <bean id="placeholderConfig" class="com.test.SpringPropertiesUtil">
        <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" />
        <property name="locations">
            <list>
                <value>file:${config.path}/application.properties</value>
                <value>file:${config.path}/log.properties</value>
            </list>
        </property>
    </bean>

Answer 1

尝试更改以下行

@Value("${com.test.isTestEnable")

自

@Value("#{new Boolean('${com.test.isTestEnable}')}")

运筹学

@Value("#{T(Boolean).parseBoolean('${com.test.isTestEnable}')}")

Answer 2

您的真正问题只是 @Value（“${com.test.isTestEnable”） 处的拼写错误 - 您在表达式末尾缺少一个右大括号 }

这应该完全正常工作：

    @Value("${com.test.isTestEnable}")
    public Boolean isTestEnable;