< H2 > description < H2 > physical environment 2GB memory < H2 > phenomenon description: < H2 > I have a program (no source code) that uses Netty at the bottom (don t be misled into a problem with NIO, but it may be related to DirectMemory), ther...
the program first executes a start method to take up a lot of memory, and then executes endEmpty to call System.gc () to run, the task manager can see that the memory footprint of the program immediately reaches 4G, but the memory footprint of th...
before the code is written in Controller, too much writing is bloated, and it looks so messy. Now that I ve changed it to this, I don t know exactly how to calculate the industry standard. If it feels like this, it will be a little clearer. controlle...
demand: 1.log; 2.log requirements: 1.; 2.; 3. which Daniel has ever achieved it? Solve. the current idea is to use the mybatis interceptor to implement. ...
the first paragraph of code: function add(){ console.log(this.x + this.y); }; var obj = { x: 2, y: 3 }; setTimeout(add.bind(obj), 1000); the callback function above can be called correctly, and the result 5 is displayed. second parag...
spring integration MongoDB, wants to add and modify functions in a method. After using mongoTemplate.upsert, it is found that the id value of inserting new data is null, but there is id in insert insertion. Why? How to solve? I am not very familiar with ...
as follows, there is a connection, and the text on the connection is implemented using path text, and when the line is rotated 360 degrees, the text is reversed. How to make the text direction positive no matter how the line is rotated? ...