annotations

问题 I am attempting to implement caching in my application using Ehcache and the Spring 3.1 built in caching annotations (@Cacheable, @CacheEvict, and @CachePut). I have created a cache as follows: @Cacheable(value = "userCache", key = "#user.id") public List<User> getAllUsers() { ... } I am attempting to update this cache with a new value using the @CachePut annotation as below: @CachePut(value = "userCache", key = "#user.id") public void addUser(User user) { ... } However, the new "User" is not

问题 I have a custom annotation as, @Target({ElementType.METHOD}) @Retention(RetentionPolicy.RUNTIME) public @interface XAudit { AuditActionType action(); } I am using this annotation on some method as following, @XAudit(action = "REGISTRATION") public RegistrationDTO register(UserDetail detail) { //Logic return dto; } I am capturing event in aspect as following, @Around(value = "@annotation(XAudit)") public Object postAuditEvent(ProceedingJoinPoint joinPoint, XAudit xAudit) throws Throwable {

问题 I'm trying to use @Autowired annotation for a Service class in Spring Boot application, but it keeps throwing No qualifying bean of type exception. However, if I change the service class to a bean, then it works fine. This is my code: package com.mypkg.domain; @Service public class GlobalPropertiesLoader { @Autowired private SampleService sampleService; } package com.mypkg.service; @Service public class SampleService{ } And this is my SpringBoot class: package com.mypkg; import java.util.Set;

问题 I'm trying to use @Autowired annotation for a Service class in Spring Boot application, but it keeps throwing No qualifying bean of type exception. However, if I change the service class to a bean, then it works fine. This is my code: package com.mypkg.domain; @Service public class GlobalPropertiesLoader { @Autowired private SampleService sampleService; } package com.mypkg.service; @Service public class SampleService{ } And this is my SpringBoot class: package com.mypkg; import java.util.Set;

问题 How to write macro annotation which looks in usage like @named("+2") _ + 2 and produces: new (Int => Int) { override def toString(): String = "+2" def apply(x: Int): Int = x + 2 } 回答1: Correct syntax is ((_: Int) + 2): @named("+2") . Unfortunately macro annotations annotating expressions don't expand. The simplest is to use object Named { def build[T, R](name: String)(applyFunc: T => R): T => R = new (T => R) { override def toString() = name def apply(x: T): R = applyFunc(x) } } without any

问题 I am trying to add some annotations to a Google Candlestick chart. I noticed someone had already asked this same question (Adding annotations to Google Candlestick chart). The user Aperçu replied with a detailed solution to extend the chart and add annotations since the chart doesn't have any such feature built in. However, when I try this solution I get an error "TypeError: document.querySelectorAll(...)[0] is undefined" Here is my code: chartPoints = [ ['Budget', 0, 0, 9999, 9999, 'foo1'],

问题 I am pretty new in Spring MVC. In this period I am studying the Spring MVC showcase example downlodable from STS dashboard. I am having some problems understanding how Custom Resolvable Web Arguments are handled in this example. In practice I have the following situation: In my home.jsp view I have the following link: <a id="customArg" class="textLink" href="<c:url value="/data/custom" />">Custom</a> This link generate an HTTP Request towards the URL: "/data/custom" The controller class that

问题 I am pretty new in Spring MVC. In this period I am studying the Spring MVC showcase example downlodable from STS dashboard. I am having some problems understanding how Custom Resolvable Web Arguments are handled in this example. In practice I have the following situation: In my home.jsp view I have the following link: <a id="customArg" class="textLink" href="<c:url value="/data/custom" />">Custom</a> This link generate an HTTP Request towards the URL: "/data/custom" The controller class that

问题 I'm trying to make a annotated heatmap on plotly. import plotly.plotly as py import plotly.tools as tls from plotly.graph_objs import * import numpy as np import pandas as pd import matplotlib.pyplot as plt df = pd.read_csv('masterc.csv') locations = {} anno = [] for i in range(df.shape[0]): locations.setdefault((df.iat[i,2],df.iat[i,6]),0) locations[(df.iat[i,2],df.iat[i,6])]+=df.iat[i,8] x1 = [] y1 = [] z1 = [] z1_text = [] for key in locations.keys(): if key[0] not in x1: x1 += [key[0],]

问题 I need to annotate a pylab rectangle with few data lines - which are of different length. Searching through the matplotlib documentation, and Googling, I could not find a way to give different parts of an annotation different sizes. The following snippet demonstrates the problem: import pylab from matplotlib.patches import Rectangle pylab.rcParams['verbose.level'] = 'debug-annoying' def draw_rectangle(lower, upper, entry): ax = pylab.subplot(111) r = Rectangle( lower, upper[0]-lower[0], upper