本文整理了Java中java.lang.System.setProperty()方法的一些代码示例，展示了System.setProperty()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.setProperty()方法的具体详情如下：
包路径：java.lang.System
类名称：System
方法名：setProperty

System.setProperty介绍

[英]Sets the value of a particular system property.
[中]设置特定系统属性的值。

代码示例

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

@Override
public Class getObjectType() {
  System.setProperty("factory.object.type", "true");
  return Properties.class;
}

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

@Test(expected = IllegalArgumentException.class)
public void defaultProfileWithCircularPlaceholder() {
  System.setProperty(DEFAULT_PROFILES_PROPERTY_NAME, "${spring.profiles.default}");
  try {
    environment.getDefaultProfiles();
  }
  finally {
    System.getProperties().remove(DEFAULT_PROFILES_PROPERTY_NAME);
  }
}

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

@After
public void after() {
  if (enabled != null) {
    System.setProperty("ENABLED", enabled);
  }
  else {
    System.clearProperty("ENABLED");
  }
  if (context != null) {
    context.close();
  }
}

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

@Test
public void getActiveProfiles_fromSystemProperties() {
  System.setProperty(ACTIVE_PROFILES_PROPERTY_NAME, "foo");
  assertThat(Arrays.asList(environment.getActiveProfiles()), hasItem("foo"));
  System.getProperties().remove(ACTIVE_PROFILES_PROPERTY_NAME);
}

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

@Before
public void setup() {
  p1BeanDef = rootBeanDefinition(TestBean.class)
      .addPropertyValue("name", "${" + P1 + "}")
      .getBeanDefinition();
  bf = new DefaultListableBeanFactory();
  ppcProperties = new Properties();
  ppcProperties.setProperty(P1, P1_LOCAL_PROPS_VAL);
  System.setProperty(P1, P1_SYSTEM_PROPS_VAL);
  ppc = new PropertyPlaceholderConfigurer();
  ppc.setProperties(ppcProperties);
}

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

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

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

@Test
public void testReplaceFromSystemPropertyWithDefault() {
  System.setProperty("test.prop", "bar");
  try {
    String resolved = SystemPropertyUtils.resolvePlaceholders("${test.prop:foo}");
    assertEquals("bar", resolved);
  }
  finally {
    System.getProperties().remove("test.prop");
  }
}

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

@Test
public void testReplaceFromSystemPropertyWithExpressionDefault() {
  System.setProperty("test.prop", "bar");
  try {
    String resolved = SystemPropertyUtils.resolvePlaceholders("${test.prop:#{foo.bar}}");
    assertEquals("bar", resolved);
  }
  finally {
    System.getProperties().remove("test.prop");
  }
}

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

@Test
public void getActiveProfiles_fromSystemProperties_withMulitpleProfiles_withWhitespace() {
  System.setProperty(ACTIVE_PROFILES_PROPERTY_NAME, " bar , baz "); // notice whitespace
  assertThat(Arrays.asList(environment.getActiveProfiles()), hasItems("bar", "baz"));
  System.getProperties().remove(ACTIVE_PROFILES_PROPERTY_NAME);
}

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

@Test
@SuppressWarnings("resource")
public void valueFieldsAreProcessedWhenStaticPlaceholderConfigurerIsIntegrated() {
  AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
  ctx.register(ConfigWithValueFieldAndStaticPlaceholderConfigurer.class);
  System.setProperty("test.name", "foo");
  ctx.refresh();
  System.clearProperty("test.name");
  TestBean testBean = ctx.getBean(TestBean.class);
  assertThat(testBean.getName(), equalTo("foo"));
}

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

@Test
public void getActiveProfiles_systemPropertiesEmpty() {
  assertThat(environment.getActiveProfiles().length, is(0));
  System.setProperty(ACTIVE_PROFILES_PROPERTY_NAME, "");
  assertThat(environment.getActiveProfiles().length, is(0));
  System.getProperties().remove(ACTIVE_PROFILES_PROPERTY_NAME);
}

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

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

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

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

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

@Test
@SuppressWarnings("resource")
public void valueFieldsAreProcessedWhenPlaceholderConfigurerIsSegregated() {
  AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
  ctx.register(ConfigWithValueField.class);
  ctx.register(ConfigWithPlaceholderConfigurer.class);
  System.setProperty("test.name", "foo");
  ctx.refresh();
  System.clearProperty("test.name");
  TestBean testBean = ctx.getBean(TestBean.class);
  assertThat(testBean.getName(), equalTo("foo"));
}

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

@Test
public void resolveDefaultValueFromSystemProperty() throws Exception {
  System.setProperty("systemProperty", "bar");
  try {
    Object result = resolver.resolveArgument(paramSystemProperty, null, webRequest, null);
    assertTrue(result instanceof String);
    assertEquals("bar", result);
  }
  finally {
    System.clearProperty("systemProperty");
  }
}

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

@Test
public void reservedDefaultProfile() {
  assertThat(environment.getDefaultProfiles(), equalTo(new String[]{RESERVED_DEFAULT_PROFILE_NAME}));
  System.setProperty(DEFAULT_PROFILES_PROPERTY_NAME, "d0");
  assertThat(environment.getDefaultProfiles(), equalTo(new String[]{"d0"}));
  environment.setDefaultProfiles("d1", "d2");
  assertThat(environment.getDefaultProfiles(), equalTo(new String[]{"d1","d2"}));
  System.getProperties().remove(DEFAULT_PROFILES_PROPERTY_NAME);
}

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

@Test
public void retrieveMaxCacheSizeFromSystemProperty() {
  System.setProperty(MAX_CONTEXT_CACHE_SIZE_PROPERTY_NAME, "42");
  assertEquals(42, retrieveMaxCacheSize());
}

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

@Test
public void retrieveMaxCacheSizeFromSystemPropertyContainingWhitespace() {
  System.setProperty(MAX_CONTEXT_CACHE_SIZE_PROPERTY_NAME, "42\t");
  assertEquals(42, retrieveMaxCacheSize());
}

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

@Test
public void resolveDefaultValueSystemProperty() throws Exception {
  System.setProperty("systemProperty", "sysbar");
  try {
    Message<byte[]> message = MessageBuilder.withPayload(new byte[0]).build();
    Object result = resolver.resolveArgument(paramSystemPropertyDefaultValue, message);
    assertEquals("sysbar", result);
  }
  finally {
    System.clearProperty("systemProperty");
  }
}

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

@Test
public void resolveNameFromSystemProperty() throws Exception {
  System.setProperty("systemProperty", "sysbar");
  try {
    Message<byte[]> message = MessageBuilder.withPayload(new byte[0]).setHeader("sysbar", "foo").build();
    Object result = resolver.resolveArgument(paramSystemPropertyName, message);
    assertEquals("foo", result);
  }
  finally {
    System.clearProperty("systemProperty");
  }
}