Java 带有jackson lib gradle的eclipse类路径问题
我的项目在EclipseOxygen和mars中打开过一次,我看到了一个在EclipseOxygen中导入jackson lib的修复程序(eclipse建议)——我这样做了,它解决了这个问题——尽管我已经在我的项目的gradle dependencies列表中提到了相同的依赖项 之后,我在EclipseMars中打开了同一个项目,依赖项显示在buildpath(eclipse deps列表)中,在我的gradle deps列表中,但EclipseMars仍然在源代码上显示错误 我清理了项目,也清理了。/gradlew eclipse-一切都成功了,但是eclipse mars无法解决依赖关系-我应该如何解决这个问题 我的身材,格雷德尔是Java 带有jackson lib gradle的eclipse类路径问题,java,eclipse,gradle,Java,Eclipse,Gradle,我的项目在EclipseOxygen和mars中打开过一次,我看到了一个在EclipseOxygen中导入jackson lib的修复程序(eclipse建议)——我这样做了,它解决了这个问题——尽管我已经在我的项目的gradle dependencies列表中提到了相同的依赖项 之后,我在EclipseMars中打开了同一个项目,依赖项显示在buildpath(eclipse deps列表)中,在我的gradle deps列表中,但EclipseMars仍然在源代码上显示错误 我清理了项目,也
/*
* This build file was generated by the Gradle 'init' task.
*
* This generated file contains a sample Java Library project to get you started.
* For more details take a look at the Java Libraries chapter in the Gradle
* user guide available at https://docs.gradle.org/3.5/userguide/java_library_plugin.html
*/
// Apply the java-library plugin to add support for Java Library
apply plugin: 'java-library'
apply plugin: 'eclipse'
// In this section you declare where to find the dependencies of your project
repositories {
// Use jcenter for resolving your dependencies.
// You can declare any Maven/Ivy/file repository here.
jcenter()
mavenCentral()
}
dependencies {
// This dependency is exported to consumers, that is to say found on their compile classpath.
api 'org.apache.commons:commons-math3:3.6.1'
// This dependency is used internally, and not exposed to consumers on their own compile classpath.
implementation 'com.google.guava:guava:21.0'
// Use JUnit test framework
testImplementation 'junit:junit:4.12'
// https://mvnrepository.com/artifact/org.jsoup/jsoup
compile group: 'org.jsoup', name: 'jsoup', version: '1.11.2'
// https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core
compile group: 'com.fasterxml.jackson.core', name: 'jackson-core', version: '2.9.3'
}
这是我的ref代码
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.Iterator;
import java.util.Scanner;
import java.util.regex.Pattern;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
public class Main {
// public ObjectMapper mapper = new ObjectMapper();
public static void main(String[] args) {
// for (String html : args) {
// Main main = new Main();
// try {
// main.parseHtml(html);
// } catch (JsonProcessingException e) {
// e.printStackTrace();
// }
// }
Main main = new Main();
String html = main.getFile("appleInc.html");
try {
main.parseHtml(html);
} catch (JsonProcessingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private String getFile(String fileName) {
StringBuilder result = new StringBuilder("");
//Get file from resources folder
ClassLoader classLoader = getClass().getClassLoader();
File file = new File(classLoader.getResource(fileName).getFile());
try (Scanner scanner = new Scanner(file)) {
while (scanner.hasNextLine()) {
String line = scanner.nextLine();
result.append(line).append("\n");
}
scanner.close();
} catch (IOException e) {
e.printStackTrace();
}
return result.toString();
}
public void parseHtml(String html) throws JsonProcessingException {
Document document = Jsoup.parse(html);
// parse all the table required
// ArrayNode tableInfo = retrieveTableInfo(document);
// get the metadata from the html
ObjectNode metadataObject = retrieveMetadataInfo(document);
// tableInfo.add(metadataObject);
// System.out.println(mapper.writerWithDefaultPrettyPrinter().writeValueAsString(tableInfo));
}
@SuppressWarnings("unused")
private ObjectNode retrieveMetadataInfo(Document document) {
String type = document.getElementsByTag("type").text();
String companyName = findCompanyName(document);
String employerIdentificationNo = findEmployerIdentificationNumber(document);
return null;
}
private String findEmployerIdentificationNumber(Document document) {
String employerNo = "";
employerNo = document.getElementsContainingText("I.R.S. Employer").prev("div").text();
if (employerNo.isEmpty()) {
Iterator<Element> iterator = document.getElementsContainingText("Employer Identification").prev("tr")
.iterator();
while (iterator.hasNext()) {
Element element = (Element) iterator.next();
if (element.is("tr")) {
employerNo = element.getElementsMatchingText(getPattern()).text();
}
}
}
return null;
}
private Pattern getPattern() {
String re1 = "(\\d+)";
String re2 = "(-)";
String re3 = "(\\d+)";
return Pattern.compile(re1 + re2 + re3, Pattern.CASE_INSENSITIVE | Pattern.DOTALL);
}
private String findCompanyName(Document document) {
return document.getElementsContainingText("Exact name of Registrant").prev("div").text();
}
private ArrayNode retrieveTableInfo(Document document) {
Elements tables = document.getElementsByTag("table");
tables.forEach(table -> {
if (Validator.isTableUsefull(table))
return;
String tableTitle = getTableTitle(document, table);
});
return null;
}
private String getTableTitle(Document document, Element table) {
// TODO Auto-generated method stub
return null;
}
}
导入java.io.File;
导入java.io.IOException;
导入java.net.URL;
导入java.util.Iterator;
导入java.util.Scanner;
导入java.util.regex.Pattern;
导入org.jsoup.jsoup;
导入org.jsoup.nodes.Document;
导入org.jsoup.nodes.Element;
导入org.jsoup.select.Elements;
导入com.fasterxml.jackson.core.JsonProcessingException;
导入com.fasterxml.jackson.databind.ObjectMapper;
导入com.fasterxml.jackson.databind.node.ArrayNode;
导入com.fasterxml.jackson.databind.node.ObjectNode;
公共班机{
//public ObjectMapper mapper=new ObjectMapper();
公共静态void main(字符串[]args){
//for(字符串html:args){
//Main Main=新Main();
//试一试{
//main.parseHtml(html);
//}catch(JsonProcessingException e){
//e.printStackTrace();
// }
// }
Main Main=新Main();
字符串html=main.getFile(“appleInc.html”);
试一试{
main.parseHtml(html);
}捕获(JsonProcessingException e){
//TODO自动生成的捕捉块
e、 printStackTrace();
}
}
私有字符串getFile(字符串文件名){
StringBuilder结果=新的StringBuilder(“”);
//从资源文件夹获取文件
ClassLoader ClassLoader=getClass().getClassLoader();
File File=新文件(classLoader.getResource(fileName.getFile());
尝试(扫描仪=新扫描仪(文件)){
while(scanner.hasNextLine()){
字符串行=scanner.nextLine();
结果.append(行).append(“\n”);
}
scanner.close();
}捕获(IOE异常){
e、 printStackTrace();
}
返回result.toString();
}
public void parseHtml(字符串html)引发JsonProcessingException{
documentdocument=Jsoup.parse(html);
//解析所需的所有表
//ArrayNode tableInfo=retrieveTableInfo(文档);
//从html中获取元数据
ObjectNode metadataObject=retrieveMetadataInfo(文档);
//tableInfo.add(metadataObject);
//System.out.println(mapper.writerWithDefaultPrettyPrinter().writeValueAsString(tableInfo));
}
@抑制警告(“未使用”)
私有ObjectNode retrieveMetadataInfo(文档){
字符串类型=document.getElementsByTag(“类型”).text();
字符串companyName=findCompanyName(文档);
字符串employerIdentificationNo=findEmployerIdentificationNumber(文档);
返回null;
}
私有字符串findEmployerIdentificationNumber(文档){
字符串employerNo=“”;
employerNo=document.getElementsContainingText(“I.R.S.雇主”).prev(“div”).text();
if(employerNo.isEmpty()){
迭代器迭代器=document.getElementsContainingText(“雇主标识”).prev(“tr”)
.iterator();
while(iterator.hasNext()){
Element=(Element)迭代器.next();
if(元素is(“tr”)){
employerNo=element.getElementsMatchingText(getPattern()).text();
}
}
}
返回null;
}
私有模式getPattern(){
字符串re1=“(\\d+”;
字符串re2=“(”);
字符串re3=“(\\d+”;
返回Pattern.compile(re1+re2+re3,Pattern.CASE|u不区分| Pattern.DOTALL);
}
私有字符串findCompanyName(文档){
返回文档.getElementsContainingText(“注册人的确切名称”).prev(“div”).text();
}
专用ArrayNode retrieveTableInfo(文档){
元素表=document.getElementsByTag(“表”);
tables.forEach(表->{
if(验证程序isTableUsefull(表))
返回;
String tableTitle=getTableTitle(文档,表格);
});
返回null;
}
私有字符串getTableTitle(文档、元素表){
//TODO自动生成的方法存根
返回null;
}
}
您使用的类不是jackson core的一部分。您可以通过浏览或查看jar文件的内容看到这一点 如您所见,包
com.fasterxml.jackson.core
中的类JsonProcessingException
,找到时没有问题。那是因为它是杰克逊核心的一部分
缺少的类都在包
com.fasterxml.jackson.databind
中。要解决这些问题,您需要添加所需的库:com.fasterxml.jackson.core:jackson-databind
您使用的类不是jackson-core的一部分。您可以通过浏览或查看jar文件的内容看到这一点
如您所见,包com.fasterxml.jackson.core
中的类JsonProcessingException
,找到时没有问题。那是因为它是杰克逊核心的一部分
缺少的类都在包com.fasterxml.jackson.databind
中。要解决这些问题,您需要添加所需的库: