Solve the issue of the itext dependency problem of Maven not being able to download the 2.1.7.js7 version

Problems and analysis

One day I suddenly found that the project using Maven compiled to report the following error:

Failed to collect dependencies at :jasperreports:jar:6.10.0
-> :itext:jar:2.1.7.js7: Failed to read artifact descriptor for :itext:jar:2.1.7.js7: 
Could not transfer artifact :itext:pom:2.1.7.js7

At first I thought the network was not good enough to connect to the remote library, or the remote library did not have the jar package, but later I found that it was not found in the Maven central repository.2.1.7.js7Version ofitextrely.

After searching on it, I found that many people encountered the same problem, all of which were because they used a certain version.jasperreports, which eventually led to the error.

Since it is specified in the jasperreports pom file2.1.7.js7Version ofitextDependency, but there is no such thing asjs7etc. suffix version.

This version is a version where JasperReports has patched it to fix some bugs, but it is not released to the central library. However, these bugs have also been fixed in a higher version. You can use a higher version of itext to avoid these bugs.

Solution

Exclude the itext dependencies in jasperreports and specify the version by yourself.

• The pom is as follows:

<dependency>
    <groupId></groupId>
    <artifactId>jasperreports</artifactId>
    <version>6.10.0</version>
    <exclusions>
        <exclusion>
            <groupId></groupId>
            <artifactId>itext</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
  <groupId></groupId>
  <artifactId>itext</artifactId>
  <version>2.1.7</version>
</dependency>

The itext version here is specified according to its actual situation. Itext has been stopped and started from the version after 4.2.2.Migrate to, if necessary, you can use a higher version of itextpdf dependency.

• The pom is as follows:

<dependency>
    <groupId>jasperreports</groupId>
    <artifactId>jasperreports</artifactId>
    <version>6.10.0</version> <!--(or higher)-->
    <exclusions>
        <exclusion>
            <groupId></groupId>
            <artifactId>itext</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId></groupId>
    <artifactId>itextpdf</artifactId>
    <version>5.5.13</version> <!--(or higher)-->
</dependency>

Reference link:

• Dependency error in jasper-reports from itext
• IText, A Free Java PDF Library

Summarize

The above is personal experience. I hope you can give you a reference and I hope you can support me more.