java.lang.System.clearProperty()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中java.lang.System.clearProperty()方法的一些代码示例，展示了System.clearProperty()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。System.clearProperty()方法的具体详情如下：
包路径：java.lang.System
类名称：System
方法名：clearProperty

System.clearProperty介绍

[英]Removes a specific system property.
[中]删除特定的系统属性。

代码示例

代码示例来源：origin: google/guava

  1. @Override
  2. protected void tearDown() throws Exception {
  3.  classReloader.close();
  4.  Thread.currentThread().setContextClassLoader(oldClassLoader);
  5.  System.clearProperty("guava.concurrent.generate_cancellation_cause");
  6. }

代码示例来源：origin: spring-projects/spring-framework

  1. @After
  2. public void cleanup() {
  3.   System.clearProperty(P1);
  4. }

代码示例来源：origin: spring-projects/spring-framework

  1. @After
  2. public void after() {
  3.   if (enabled != null) {
  4.     System.setProperty("ENABLED", enabled);
  5.   }
  6.   else {
  7.     System.clearProperty("ENABLED");
  8.   }
  9.   if (context != null) {
  10.     context.close();
  11.   }
  12. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void suppressGetenvAccessThroughSystemProperty() {
  3.   System.setProperty("spring.getenv.ignore", "true");
  4.   assertTrue(environment.getSystemEnvironment().isEmpty());
  5.   System.clearProperty("spring.getenv.ignore");
  6. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void withResolvablePlaceholder() {
  3.   AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
  4.   ctx.register(ConfigWithResolvablePlaceholder.class);
  5.   System.setProperty("path.to.properties", "org/springframework/context/annotation");
  6.   ctx.refresh();
  7.   assertThat(ctx.getBean(TestBean.class).getName(), equalTo("p1TestBean"));
  8.   System.clearProperty("path.to.properties");
  9. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. @SuppressWarnings("resource")
  3. public void valueFieldsAreProcessedWhenStaticPlaceholderConfigurerIsIntegrated() {
  4.   AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
  5.   ctx.register(ConfigWithValueFieldAndStaticPlaceholderConfigurer.class);
  6.   System.setProperty("test.name", "foo");
  7.   ctx.refresh();
  8.   System.clearProperty("test.name");
  9.   TestBean testBean = ctx.getBean(TestBean.class);
  10.   assertThat(testBean.getName(), equalTo("foo"));
  11. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void resolveSystemProperty() throws Exception {
  3.   System.setProperty("systemProperty", "22");
  4.   Object value = resolver.resolveArgument(paramSystemProperty, null, webRequest, null);
  5.   System.clearProperty("systemProperty");
  6.   assertEquals("22", value);
  7. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void withResolvablePlaceholderAndFactoryBean() {
  3.   AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
  4.   ctx.register(ConfigWithResolvablePlaceholderAndFactoryBean.class);
  5.   System.setProperty("path.to.properties", "org/springframework/context/annotation");
  6.   ctx.refresh();
  7.   assertThat(ctx.getBean(TestBean.class).getName(), equalTo("p1TestBean"));
  8.   System.clearProperty("path.to.properties");
  9. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. @SuppressWarnings("resource")
  3. public void valueFieldsAreProcessedWhenPlaceholderConfigurerIsSegregated() {
  4.   AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
  5.   ctx.register(ConfigWithValueField.class);
  6.   ctx.register(ConfigWithPlaceholderConfigurer.class);
  7.   System.setProperty("test.name", "foo");
  8.   ctx.refresh();
  9.   System.clearProperty("test.name");
  10.   TestBean testBean = ctx.getBean(TestBean.class);
  11.   assertThat(testBean.getName(), equalTo("foo"));
  12. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void resolveSystemProperty() throws Exception {
  3.   System.setProperty("systemProperty", "22");
  4.   try {
  5.     Mono<Object> mono = this.resolver.resolveArgument(
  6.         this.paramSystemProperty,  new BindingContext(), this.exchange);
  7.     Object value = mono.block();
  8.     assertEquals(22, value);
  9.   }
  10.   finally {
  11.     System.clearProperty("systemProperty");
  12.   }
  13. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void resolveDefaultValueFromSystemProperty() throws Exception {
  3.   System.setProperty("systemProperty", "bar");
  4.   try {
  5.     Object result = resolver.resolveArgument(paramSystemProperty, null, webRequest, null);
  6.     assertTrue(result instanceof String);
  7.     assertEquals("bar", result);
  8.   }
  9.   finally {
  10.     System.clearProperty("systemProperty");
  11.   }
  12. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Before
  2. @After
  3. public void clearProperties() {
  4.   System.clearProperty(MAX_CONTEXT_CACHE_SIZE_PROPERTY_NAME);
  5.   SpringProperties.setProperty(MAX_CONTEXT_CACHE_SIZE_PROPERTY_NAME, null);
  6. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void trimValuesIsOffByDefault() {
  3.   PropertyPlaceholderConfigurer ppc = new PropertyPlaceholderConfigurer();
  4.   System.setProperty("my.name", " myValue  ");
  5.   DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
  6.   bf.registerBeanDefinition("testBean", rootBeanDefinition(TestBean.class)
  7.       .addPropertyValue("name", "${my.name}")
  8.       .getBeanDefinition());
  9.   ppc.postProcessBeanFactory(bf);
  10.   assertThat(bf.getBean(TestBean.class).getName(), equalTo(" myValue  "));
  11.   System.clearProperty("my.name");
  12. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2.   public void fallbackToSystemProperties() {
  3.     MockServletContext servletContext = new MockServletContext();
  4.     System.setProperty("test.prop", "bar");
  5.     try {
  6.       String resolved = ServletContextPropertyUtils.resolvePlaceholders("${test.prop:foo}", servletContext);
  7.       assertEquals("bar", resolved);
  8.     }
  9.     finally {
  10.       System.clearProperty("test.prop");
  11.     }
  12.   }
  13. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void trimValuesIsApplied() {
  3.   PropertyPlaceholderConfigurer ppc = new PropertyPlaceholderConfigurer();
  4.   ppc.setTrimValues(true);
  5.   System.setProperty("my.name", " myValue  ");
  6.   DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
  7.   bf.registerBeanDefinition("testBean", rootBeanDefinition(TestBean.class)
  8.       .addPropertyValue("name", "${my.name}")
  9.       .getBeanDefinition());
  10.   ppc.postProcessBeanFactory(bf);
  11.   assertThat(bf.getBean(TestBean.class).getName(), equalTo("myValue"));
  12.   System.clearProperty("my.name");
  13. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void nullValueIsPreserved() {
  3.   PropertyPlaceholderConfigurer ppc = new PropertyPlaceholderConfigurer();
  4.   ppc.setNullValue("customNull");
  5.   System.setProperty("my.name", "customNull");
  6.   DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
  7.   bf.registerBeanDefinition("testBean", rootBeanDefinition(TestBean.class)
  8.       .addPropertyValue("name", "${my.name}")
  9.       .getBeanDefinition());
  10.   ppc.postProcessBeanFactory(bf);
  11.   assertThat(bf.getBean(TestBean.class).getName(), nullValue());
  12.   System.clearProperty("my.name");
  13. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void resolveDefaultValueSystemProperty() throws Exception {
  3.   System.setProperty("systemProperty", "sysbar");
  4.   try {
  5.     Message<byte[]> message = MessageBuilder.withPayload(new byte[0]).build();
  6.     Object result = resolver.resolveArgument(paramSystemPropertyDefaultValue, message);
  7.     assertEquals("sysbar", result);
  8.   }
  9.   finally {
  10.     System.clearProperty("systemProperty");
  11.   }
  12. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void resolveNameFromSystemProperty() throws Exception {
  3.   System.setProperty("systemProperty", "sysbar");
  4.   try {
  5.     Message<byte[]> message = MessageBuilder.withPayload(new byte[0]).setHeader("sysbar", "foo").build();
  6.     Object result = resolver.resolveArgument(paramSystemPropertyName, message);
  7.     assertEquals("foo", result);
  8.   }
  9.   finally {
  10.     System.clearProperty("systemProperty");
  11.   }
  12. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void resolveFromLocalProperties() {
  3.   System.clearProperty(P1);
  4.   registerWithGeneratedName(p1BeanDef, bf);
  5.   ppc.postProcessBeanFactory(bf);
  6.   TestBean bean = bf.getBean(TestBean.class);
  7.   assertThat(bean.getName(), equalTo(P1_LOCAL_PROPS_VAL));
  8. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void setSystemSystemPropertiesMode_toOverride_andSetSearchSystemEnvironment_toFalse() {
  3.   registerWithGeneratedName(p1BeanDef, bf);
  4.   System.clearProperty(P1); // will now fall all the way back to system environment
  5.   ppc.setSearchSystemEnvironment(false);
  6.   ppc.setSystemPropertiesMode(PropertyPlaceholderConfigurer.SYSTEM_PROPERTIES_MODE_OVERRIDE);
  7.   ppc.postProcessBeanFactory(bf);
  8.   TestBean bean = bf.getBean(TestBean.class);
  9.   assertThat(bean.getName(), equalTo(P1_LOCAL_PROPS_VAL)); // has to resort to local props
  10. }

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