I asked for a conditional query in springboot, so I used Criteria, but didn"t it need to provide a metamodel class? I customized one, but when I checked the null pointer exception at run time, I found that the metadata class could not be found. What should I do?
Test class
in Predicate p2=cb.equal (root.get (Biz_Ipmonitor_Config_.ser_name), ser_name); the class Biz_Ipmonitor_Config_ cannot be found if debug cannot be run here. How to deal with it
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before IDEA was updated, it was obviously adjusted not to delete the setting, but I don t know why the setting was restored. This is not the point. Today, the updated Javaweb project entered the project as it was after IDEA modified the code to open tom...
how to build angular2 in idea, what are the specific steps? ...
as shown in the picture, there is often such a hint that: All Contexts File is included in 4 contexts, does not know what it means. Baidu has made a circle and has not found the answer. Solve ...
using idea to add the plug-in mybatis-generator-maven-plugin, to the maven project failed. I followed the online tutorials: add to pom.xml could you tell me how to solve this? ...
get two data from two textfield, and then click different button to calculate addition, subtraction, multiplication and division. The result is shown in textarea, but textField.getText () can only get String, and TextArea.setText () can only give S...
when you copy a package from one project to another, do you find that several layers are missing from the package copied to the target project? this means that the package we copied in the past only fetched the last package. for example, if you copy t...
using myql-connector-java5.0.8 jar package to connect to the database of MySQL 5.7.22, the following error occurred Exception in thread "main " java.sql.SQLException: No suitable driver found for jdbc:mysql:192.168.31.218:3306 school at java.sql.Dri...
now I press ctrl +? in the XML file to produce the following comment like this is there any way to fulfill my wish? Any answer will be greatly appreciated ...
I use the following code on Robo 3T (a mongodbGUI software) db.getCollection( json ).find({"time":{$gte:1528771648859,$lte:1528771698869}},{"data":{$elemMatch :{"deviceid":456789123}}}) can get the results I want, but I...
webstorm code comments on how the font is set to positive, and the system defaults to italics. It looks a little awkward. now the comments look like this: I hope this font can be positive. ...
with the Diagram (CMD + Option + Shift + U) tool, you can realize relationships like Association, but Dependency relationships cannot be displayed. How do you do this? ...
problem description 1. Can PhpStorm set the default annotation effect? That is, directly using the shortcut keys to appear the following kind of annotation effect, can it be achieved? *********** *********** $data = $this->params; **********...
as shown in the figure, the newly initialized react-native project does nothing. Open it in Android Studio and that s it-sharp-sharp-sharp problem description ...
the picture shows no replacement ...
when using Idea before, because it is a non-springboot project, create three new dev,test,prod environments under the src main resources directory, and then switch to the environment under profiles under Maven projects on the right side of the IDEA. ...
how does idea debug dynamically generated proxy classes? recently, in learning the dubbo source code, some of the functions are often accomplished by the classes generated by the dynamic proxy. If you follow the normal debug, you can only jump into th...
start jrebel to report an error directly. After checking the error message JRebel-JVMTI [FATAL] Couldn t write to, , there is a Chinese path problem. Modify the code. but all modify Tomcat spring boot ...
use Thymeleaf to say that you want to add dependencies <dependency> <groupId>net.sourceforge.nekohtml< groupId> <artifactId>nekohtml< artifactId> <version>1.9.22< version> < dependency> and c...
the Swing project created by Idea uses maven to solve dependency problems it can be successful if it is run directly in idea, but it is not successful after packaging. related pom is as follows <plugin> <artifactId>maven-assembly-...
as shown in the figure, the tags directly copy from the current page cannot be recognized because there is no import . I must manually delete 2 tag signatures and let ide associate them before I can click on the correct component to associate them. Is...
