How to insert json data into database using java

30.11.2020 By Julkree

Simpson, of a town named Springfield:. I show the complete process of obtaining a database Connection object below. If you're not familiar with SQL, note that you must insert your fields in the order in which your table is defined Cnum, Lname, Salutation, City, and Snum. Snum stands for Salesperson Number, which we'll use later to link this table to our Salesperson table. Inserting the other three records is just as easy as inserting this record.

Make Your Own Plugin: Insert and Read From a Database Using JSON

We can just re-use the Statement object to insert our new values:. Note: In this example, I assumed that the database table named Customers is already created.

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You can create your database tables through your database management tools. To help you understand how this process works, the following source code shows a complete Java program that creates a Connection to the database, and then inserts the data as shown previously:.

When it comes to inserting data into a database, most developers prefer to use a PreparedStatement instead of a Statementas the PreparedStatement is more secure. Please see these articles for more information on how to use a PreparedStatement :.

By Alvin Alexander. Last updated: November 21, Springfield McBeal Ms. Boston Flinstone Mr. Bedrock Cramden Mr. We can just re-use the Statement object to insert our new values: statement. The JdbcInsert1.

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In this tutorial, you will learn how to query two database tables, join the data using a conditional expression, and write the data to a JSON file. Start a free trial and test it out for 30 days.

Insert JSON into a MySQL table?

JSON data is represented in a logical, organized, and easy-to-access manner. To begin, create a new Project following the Getting Started with Projects tutorial. The orders database table will be queried first. With the SQL wizard, you can choose schemas librariestables physical filescolumns fieldscolumn headings, "where" clauses and "order by" criteria.

See the SQL Wizard tutorial for more information. In the Object element click the Add button in the sub-menu, and then select Array. The Array element iterates through each row in a RowSet variable.

This array will contain multiple objects. In the Write Array element, click the Add button in the sub-menu, and then select Object. On the Object element, specify a Name. In the Object element, click the Add button in the sub-menu, and then select Field. As needed, add additional fields, from the Add link in the sub-menu by selecting the Add Same option. Follow the same process above, specifying the field name that will appear in the output file along with the appropriate column index of the RowSet variable.

Click the Save button when finished. The following image illustrates the Project Outline so far:. Select the Object element of the orders array. Click the Add button and select Array. Add the Object that will contain the customer fields.

Select the customers array, click the Add button, and select Object. To join data from both tables using the 'custid' as a qualifier, add a conditional expression to the new Object element.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'm trying to insert Project ID and the associated team members into db. For one Project ID there may be 1- 10 members, The count may differ for each project.

Could anyone help me with this request? You need to pass the values of those variables you're also missing an open parenthesis:. Assuming the column names are also "projectvalue" and "columnvalue", then the statement would be:. Note, too, that prepared statements are a good approach for a process such as this. It eliminates the risk of SQL errors if the values contain a single quote, reduces the risk of SQL Injection attacks, and improves performance by compiling the statement only once.

Learn more. Asked 6 years ago. Active 6 years ago. Viewed 2k times. Following is my code which retrieves Rally data.

Hope it helps. If you need more details, please do reply Thanks Sreer. Joe 6, 1 1 gold badge 11 11 silver badges 25 25 bronze badges. What is the problem that you're having?Comment 2. In this article, we will create a plugin for Speedment that generates serialization and deserialization logic using Gson to make it super easy to map between database entities and JSON strings. This will help to showcase the extendability of the Speedment code generation while, at the same time, explore some of the cool features of the Gson library.

Speedment is a code generation tool for Java that connects to a database to use it as a reference for generating entity and manager files for your project. The tool is very modular, allowing you to write your own plugins that modify the way the resulting code will look.

One thing several people have mentioned on the Gitter chat is that Speedment entities are declared abstract, which prevents them from being automatically deserialized.

In this article, we will look at how you can deserialize Speedment entities using Gson by automatically generating a custom TypeAdapter for each table in the database. This will not only give us better performance when working with JSON representations of database content, but might also serve as a general example on how you can extend the code generator to solve your problems. In a previous articleI went into detail on how to create a new plugin for Speedment, so here is the short version.

Create a new maven project and set Speedment and Gson as dependencies. Next, we need to create the translator that will generate the new type adapter for us. A translator is a class that describes what name, path, and content a generated file will have. To that, it has a lot of convenience methods to make it easier to generate the code.

The basic structure of the translator is shown below. Every translator is built up using a builder pattern that can be invoked using the newBuilder -method. This becomes important later on when we want to modify an existing translator. It is a callback that will be executed for every table that is encountered in the scope of interest.

In this case, the translator will only execute on one table at a time so the callback will only be executed once. Generating a bunch of TypeAdapters is not enough, though. We want to integrate the new code into the already existing managers. To do this, we need to define a decorator that will be applied to every generated manager after the default logic has been executed.

A decorator is similar to a translator, except it only defines the changes that should be done to an existing file. Every decorator executes in a specific phase. The logic we want to add is simple.

In the interface, we want an additional method fromJson String to be required.

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The manager implementation is a bit trickier to modify. We need to append it with a Gson instance as a member variable, an implementation for the new interface method we just added, an override for the toJson-method that uses Gson instead of the built-in serializer and we need to modify the manager constructor to instantiate Gson using our new TypeAdapter.

Once we have created all the new classes, we need to create a component and a component installer that can be referenced from any project where we want to use the plugin. When we want to use our new plugin in a project, we simply add it as a dependency both in the dependency section in the pom and as a dependency under the Speedment maven plugin. We then add a configuration tag to the plugin like below:. We can then regenerate our code and we should then have access to the new serialization and deserialization logic.

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In this article, we have created a new Speedment plugin that generated Gson TypeAdapters for every table in a database and integrates those adapters with the existing manager generation. If you want more examples on how you can use the Speedment code generator to increase your productivity, check out the GitHub page!My website gets flights information from an API into a json format.

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I would like to insert the json data into my database I connected. Have you tried using this api? Thanks Shlomi this API seems to be really helpful. Can you please share what exactly you are trying to do? An example would really help me better understand. Usually what a developer would try to do is receive data from an external api as json, treat it as a JavaScript object and then extract data from it to be mapped into numerous different explicit columns.

The way I was thinking of doing it is to import it into a database first. Indeed you will also want to let the user search and filter flights matching his criteria, so using a collection to model the flights is the right way to go! Lets say your response json object is 'res', then res.

Just map it to the structure of your predefined collection and use the insert api to save it in your db. Search online for a 'json online viewer', run the api call you pasted above in a regular web browser and paste the response text in an online viewer. It will show you the exact structure. For example i see that you need to : 'res. So res. Hope it makes sense. Can you please share the url of the site you are trying to build?

And then use the results and insert it into my Flights collection. Then in my flights page a page search button is linked to I will show the collection data. I added a foreach loop so every item in the array will get into the datacolletion. Before I start fixing my code, I wanted to consult with you on Number 5.

You are aaying maybe i should not store my data in a collection for the first place. If so, should I just show the data in right away? Like parse the Json to the flights page and ahow it to the user? You think its better? If it is, I will not store it at all.

You should only store the responses if you plan on using them in the future. Due to the nature of these searches it is probably best not to store them and bring them into view as soon as they are ready for viewing. So now I'm not putting my data into the data collection and I just try to print it. I'm trying to access the first element under data. I got an error that document not defined. It is not possible to directly communicate between site pages since only one page is active at a time.

how to insert json data into database using java

There are, however, a number of ways to share information between pages. For example you could store an ID token in the user's session storage with wix-storage and use it to fetch some information from a database once the visitor loaded the second page.

how to insert json data into database using java

So I used your tip and store the user's session in wix session. So first I tried to took the "from" value from the json file.

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The button links to another page so after you click search it needs to save the sesion of From into Form. Then over here. I have label with "Form" text. I try to change it to the session label I got from the Menu page.Simplify data security, automation, server-to-server file transfers, and more.

Strong encryption and authentication technology for critical file transfers. Asymmetric cryptology for protecting confidential files at rest and in motion. Simple and secure interfaces for user-to-user file sharing and collaboration. Build automated workflows to move files effortlessly between internal systems, users, and trading partners.

how to insert json data into database using java

Reverse and forward proxy solution for keeping sensitive files out of the DMZ. Explore how GoAnywhere MFTaaS gives you the power to securely transfer files while we take care of setup, hosting, and management.

Those RowSets can then be used to insert the data into a database or translate the data to another file type such as XML, Excel, fixed-width, or CSV with no coding required. Start a free trial and test it out for 30 days.

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JSON is represented in a logical, organized, and easy-to-access manner. For example, you could have a JSON file that contains customer information along with a list of the products the customer ordered. The customer information can be parsed into one RowSet and the list of products into another RowSet.

The following image represents a simple JSON input file and will be referred to throughout this tutorial:. To begin, create a new Project following the Getting Started with Projects tutorial. On the RowSet element, specify a value for the Variable Name attribute. Click the Add button and select Column. On the Column element, specify values for the Index and Value attributes. Click the Add button in the sub-menu and select Add Same.

Repeat the last two steps to add additional columns and elements from the JSON file. Are you trying to convert JSON data to other data formats?Another reason that this might be a beneficial thing to do, is that it may load resources more quickly. For example, if you have large amounts of data, stored in a NoSQL database, you could easily have arrays stored within each object, or even an array of objects within another object. Querying these nested arrays and nested objects can become sluggish.

However, breaking it apart, and storing it in tables could save time. Take the following example where each person has multiple pets. In JSON format, each pet array is nested in the person object.

However, in an SQL database, we could store each person in a table, and have a separate table for pets, linked together by a reference ID.

And, if we converted the above to an SQL table format, it might look like the following:. The main difference here, is that, anywhere that we would have multiple values, such as the field that contains an array of movies, we would want to create a new table of just that data, and reference the parent table, as you can see in the example above.

Feel free to copy and paste mine, or use your own.

Inserting JSON Text into SQL Server Table

My data has 4 types of data to work with, in order to experiment with how Perl handles each type of data. Below is the entire data set:. This process will be a 5 step process:. In my test. Before we get into actually writing any Perl, it may be good to take a moment to look at Perl Syntax.

Many of the functions and loops will look fairly similar to JavaScript Syntax, where conditional statements are contained in parentheses, followed by executable code inside curley braces:. All data in Perl is a scalar, an array of scalars, or a hash of scalars.

A scalar may contain one single value in any of three different flavors: a number, a string, or a reference. In general, conversion from one form to another is transparent. Although a scalar may not directly hold multiple values, it may contain a reference to an array or hash which in turn contains multiple values.

Feel free to check it out here:. This may seem a little confusing at first, especially when dealing with arrays or hashes. However, this would be incorrect.