用Java编写一个Json文件，嵌套对象而不是String

Question

I have to read a sample pom file and write all technology and version in to json file, Im able to get the output in this format:

["{ name:junit ,Version:4.12}","{ name:spring-batch-test ,Version:3.0}","{ name:spring-boot-starter }","{ name:slf4j-api }"]

However I want to get output in this format:

[{ "name":"junit" ,"Version":"4.12"},{" name":"spring-batch-test" ,"Version":"3.0"},{"name":"spring-boot-starter" }]

My code :

Map<String, String> dependencies = Maps.newHashMap();
dependencies = populateProjectDepedencies(dependencies, pomFile);
In populateProjectDependencies
for (Dependency dependency : dependencyList) {
    String version = "0.0";
    if (dependency.getVersion() != null && 
        dependency.getVersion().startsWith("${"))
    {
        version = (String) properties.get(dependency.getVersion()
                  .substring(2, dependency.getVersion().length() - 1));
    } else {
        version = dependency.getVersion();
    }
    if (version != null) {
        String a1[]=version.split("\\.");
        int i=a1.length;
        if(i>=2)
        {
            version=a1[0]+"."+a1[1];
        }
        dependencies.put("{name:"+dependency.getArtifactId(),",
                          Version:"+version+"}" );
        JSONArray jsonArray = prepareJsonObject(dependencies);
        genarateTechnologyRadarJson(jsonArray);
        writer.write(jsonArray.toJSONString());

Answer 1

Because, you are adding the value as a String

"{ name:"+dependency.getArtifactId(),"

Even, I'm not sure why are you manually constructing the JSON instead just pass the Map object to JSONObject .

JSONObject obj=new JSONObject(yourmap);

Answer 2

As I understand from your question, you are holding json as String array but you want to hold data as JSONObject array. So,

JSONArray ja = new JSONArray();
for (Dependency dependency : dependencyList) {
   .....
   JSONObject obj=new JSONObject();
   obj.put("name",dependency.getArtifactId()); 
   obj.put("Version",version);
   ja.put(obj);
   //remove dependencies.put,JSONArray. and genarateTechnologyRadarJson(jsonArray);
}
writer.write(ja.toString()); 

UPDATE

This should be your complete code

    JSONArray jsonArray = new JSONArray();
    for (Dependency dependency: dependencyList) {
        String version = "0.0";
        if (dependency.getVersion() != null &&
                dependency.getVersion().startsWith("${")) {
            version = (String) properties.get(dependency.getVersion()
                    .substring(2, dependency.getVersion().length() - 1));
        } else {
            version = dependency.getVersion();
        }
        if (version != null) {
            String a1[] = version.split("\\.");
            int i = a1.length;
            if (i >= 2) {
                version = a1[0] + "." + a1[1];
            }
        }
        JSONObject obj=new JSONObject();
        obj.put("name",dependency.getArtifactId());
        obj.put("Version",version);
        jsonArray.put(obj);
    }

    writer.write(jsonArray.toJSONString());